How Much Does It Cost to Run a Washing Machine?

The cost to run a washing machine is smaller than most people guess for the machine itself and larger than they guess for the hot water, and separating those two is the whole point of this lab report. An efficient washer costs roughly $0.25 to run a cold load once you count the water and the little electricity the motor uses, about $0.46 for a warm load, and about $0.67 for a hot one, illustratively, which comes to somewhere near $5 to $14 a month at five loads a week depending on the temperature you choose. Those are illustrative figures, and your own rates and habits move them, but the shape is right: the spin is cheap, and the heat is where the money goes.

This lab report does the full arithmetic behind that answer. It splits a wash into its three real costs, the motor, the water, and the water heating, using the same watts-to-dollars method we apply in our dryer running-cost lab report, then works the cold, warm, and hot cases per load, per month, and per year. It settles whether hot water really costs more, prices the water itself, compares efficient front-loaders with thirsty top-loaders, looks at off-peak washing and ENERGY STAR machines, and prices the washer and dryer together as the laundry pair they really are. You can feed your own loads, temperature, and rates into our cost-per-use calculator as you read and watch every figure move.

How much does it cost to run a washing machine? The short answer

The cost to run a washing machine is the sum of three things: the electricity the motor uses to fill, tumble, and spin, the water the load draws, and, only for a warm or hot wash, the energy to heat that water. For an efficient machine that works out to roughly $0.25 a cold load, about $0.46 warm, and about $0.67 hot at a typical $0.16 electricity rate and a typical $0.015-per-gallon water rate, illustratively. At five loads a week that is somewhere between about $5 and $14 a month, and between about $65 and $175 a year, depending almost entirely on the temperature you wash at.

What surprises people is how little of that belongs to the machine. The motor that spins a full drum for half an hour uses only a few cents of electricity, less than running a lightbulb for an evening. Nearly all of the difference between a cheap wash and an expensive one is the hot water, because heating water takes far more energy than moving a drum. That is the through-line of this report: the appliance on the box is not what you pay to run, the temperature dial is. The rest of this article turns that short answer into a method you can apply to any washer, at any rate, for any laundry schedule.

The running-cost method: the motor, the water, and the heat

Every appliance we test comes down to watts, hours, and your rate, the same method as our space heater running-cost lab report, but a washing machine has a twist worth spelling out: its cost splits into three separate pieces, and only two of them involve electricity. Add them and you have the cost of one load.

The first piece is the motor and controls. The washer draws roughly 0.1 to 0.2 kilowatt-hours to run a full cycle, call it 0.15, so at a $0.16 rate that is about two or three cents. This part is the same whether you wash cold or hot, and it is small. The second piece is the water: an efficient front-loader uses about 15 gallons a load, and at a combined water and sewer rate near $0.015 a gallon that is about $0.22. The third piece is the water heating, and it appears only if you wash warm or hot. Raising the temperature of the wash water takes real energy, roughly 1.3 kilowatt-hours for a warm load and 2.6 for a hot one, which at $0.16 adds about $0.21 or $0.42 to the load.

Put together: motor, plus water, plus heating, equals cost per load. A cold wash is just motor plus water, about $0.25. A hot wash adds the heating on top, reaching about $0.67. Every longer period is multiplication from there: loads per week, times 52, gives the year. Our cost-per-use calculator holds all four numbers, loads, temperature, electricity rate, and water rate, and does the arithmetic live.

The electricity a washing machine draws

Ask how much electricity a washing machine uses and the honest answer is: almost none, until you heat the water. The machine’s own motor, pump, and electronics use somewhere around 0.1 to 0.2 kilowatt-hours to run a full cycle, filling the drum, tumbling for the wash and rinse, and spinning at the end. That is a few cents at a typical rate, in the same range as running a modern television for an evening. A washer, in other words, is not a heavy electrical load the way a dryer or a space heater is.

The number changes completely when the load calls for warm or hot water. Most washing machines do not heat water themselves; they draw hot water from your home’s water heater, the same tank that feeds your shower. Heating water is energy-intensive: raising the temperature of the several gallons a warm or hot wash uses can take 1.3 to 2.6 kilowatt-hours, which is ten to twenty times what the motor uses. So a cold wash uses a trickle of electricity and a hot wash uses a real amount, and the difference is entirely the heater, not the washer.

One wrinkle matters for your bill. If your water heater runs on gas rather than electricity, the heating cost lands on your gas bill instead of your electricity bill, and gas is usually a cheaper source of heat. The wash still costs more hot than cold; the cost just shows up in a different place. Throughout this report we price heating at your electricity rate as an illustrative default, which is the conservative, higher case; a gas water heater makes hot washes cheaper than the numbers here suggest.

The water a washing machine uses per load

Water is the cost people forget, because it arrives on a separate bill and is priced by the gallon rather than the kilowatt-hour. A modern high-efficiency front-load washer uses roughly 13 to 15 gallons for a full load. A high-efficiency top-loader uses somewhat more, and an older conventional top-loader, the kind that fills the whole tub to submerge the clothes, can use 30 to 40 gallons for the same load. That is a two-to-threefold spread in water use between an efficient machine and a thirsty one.

At a combined water and sewer rate near $0.015 a gallon, illustratively, 15 gallons is about $0.22 and 35 gallons is about $0.53. That water cost is paid on every wash, cold or hot, which is why an old top-loader costs more to run even before any heating is counted: it simply moves more water. It is also why the water rate belongs in the calculation alongside the electricity rate. In areas with expensive water and sewer service, the water can be the largest single piece of a cold wash.

The lever here is load size, not the machine. A washer uses close to its rated water whether the drum is half full or full, so running full loads spreads that fixed water cost across more clothes. Two half-loads use nearly twice the water of one full load to wash the same laundry. Whatever machine you own, filling it properly is the cheapest way to get more washing out of every gallon, and our cost-per-use calculator lets you set your own water rate to see how much it contributes.

Where a wash cycle’s cost goes

Split a single hot wash into its three costs and the picture is stark: the motor is a sliver, the water is a meaningful slice, and the water heating is most of the bill. The chart below breaks down an illustrative hot load on an efficient machine, with each segment drawn in proportion to its share, so the widths themselves are the story.

The point of the split is that the thing labelled washing machine, the motor, is the thinnest slice on the chart. Nearly two-thirds of a hot wash is the water heater doing its work, and another third is the water itself. Turn the temperature down to cold and the whole heating segment vanishes, taking most of the cost with it and leaving just the water plus a few cents of motor. That is why the single most useful thing to know about a washer’s running cost is not its wattage but its temperature setting, which the next sections price directly.

The cost of a single wash load

Per load is where the temperature choice becomes concrete. Hold the machine at an efficient 15 gallons and 0.15 kilowatt-hours of motor draw, use a $0.16 electricity rate and a $0.015-per-gallon water rate, and change only the wash temperature. Here is how a single load stacks up, all illustrative.

Notice what stays constant and what changes. The motor cost, about two cents, and the water cost, about $0.22, are the same on every row, because you draw the same water and spin the same drum regardless of temperature. Everything that moves down the column is heating. A cold wash is essentially the water bill plus a rounding error; a sanitary cycle more than triples the total by adding a big slug of heating energy on top.

This is the number to carry into every later section, because per month and per year are just this figure repeated. A household that washes everything hot is paying roughly $0.67 a load; the same household washing cold pays roughly $0.25, for the same clean clothes in most cases. The gap, about $0.42 a load, is pure heating, and it is the saving that the rest of this report keeps returning to. Set your own temperature and rates in the cost-per-use calculator to see your per-load figure.

Does hot water cost more to wash? Cold vs warm vs hot

Yes, hot water costs more to wash, and by a wide margin. This is the most important running-cost fact about a washing machine, so it is worth stating plainly: the difference between a cold wash and a hot wash is almost entirely the energy to heat the water, and that energy dwarfs everything else the machine does. Going from cold to warm roughly doubles the cost of a load; going from cold to hot roughly triples it. The clothes come out the same in most cases, because the detergent, not the temperature, does the cleaning on everyday laundry.

The reason is physics, not machine design. Water resists changing temperature, so raising several gallons from tap-cold to hot takes far more energy than the motor uses to move the drum for the whole cycle. That is why the temperature dial, not the wattage label, is the real cost control on a washer. A modern detergent is formulated to dissolve and lift soils in cold water, so for typical loads, everyday clothes, lightly soiled items, colors you want to protect, cold is not a compromise. Warm and hot earn their cost on specific jobs: greasy or heavily soiled work clothes, cloth diapers, bedding you want to sanitize, and anything where a cold wash genuinely underperforms.

The saving compounds fast. At five loads a week, washing cold instead of hot saves on the order of $100 a year at typical rates, illustratively, and more if your electricity rate is high or your water heater is inefficient. Reserve hot for the few loads that need it and wash the rest cold, and you capture most of that saving without hanging a single item out to dry. This is the highest-value habit in the whole report.

Cost per load by wash temperature

The chart below holds the machine and the rates fixed and varies only the wash temperature, with each bar drawn in proportion to its cost, so the length is the money. It is the same data as the per-load table, in a form that shows the climb at a glance.

The bars scale with the heating, because the water and motor costs are identical on every row. The cold bar is close to the floor a washer can reach, since you still have to draw and spin the water. Each step up adds heating and nothing else. That clean proportionality is why the temperature choice is the first thing to get right: it moves the per-load cost by a factor of three across the range, with no change to the machine and, for most laundry, no change to the result. Find the temperature you actually use, and if it sits toward the right of the chart, the cold-wash habit is worth more to you than any efficiency tip that follows.

HE front-load vs top-load efficiency

Not every machine costs the same to run at a given temperature, and the difference comes down to water. A high-efficiency front-load washer tumbles clothes through a shallow pool of water rather than submerging them, so it uses only about 13 to 15 gallons a load. A high-efficiency top-loader with no center agitator uses somewhat more. An older conventional top-loader fills the tub to cover the clothes and can use 30 to 40 gallons. Since water is a cost on every wash and, for warm and hot loads, more water means more water to heat, the thirsty machine costs more twice over.

Work it through on a hot wash, illustratively. An efficient front-loader heating about 15 gallons lands near $0.67 a load. An old top-loader moving 35 gallons pays more for the water, about $0.53 instead of $0.22, and has more than twice as much water to heat, pushing its hot load well past $1.00. On cold washes the gap is smaller but still real, driven purely by the extra water. Over a year of regular laundry, the efficient machine’s lower water and heating costs add up to a meaningful saving, on top of the fact that it spins clothes drier and so cuts the dryer’s bill too.

The front-loader also extracts more water on its faster final spin, sending clothes to the dryer less wet. That is a hidden saving that shows up on the drying side rather than the washing side, and it is exactly the kind of second-order cost we track when we price the laundry pair together, which is the next section. The efficient washer is not just cheaper to run on its own; it makes its partner cheaper too.

The monthly cost of running a washer

Per month is per load times how often you wash, so it moves with both your load count and your temperature. Hold an efficient machine and typical rates, and here is roughly where the monthly cost lands at five loads a week, illustratively:

• Washing cold at about $0.25 a load: near $5 a month
• Washing warm at about $0.46 a load: near $10 a month
• Washing hot at about $0.67 a load: near $14 a month

Change the load count and the whole column slides. A single person doing two loads a week pays under half these figures; a large household doing ten or twelve loads a week pays roughly double. The monthly cost is simply the per-load figure times loads per week times 52, divided by twelve, so both levers, temperature and frequency, act in a straight line. There is no efficiency term hiding in the arithmetic; a wash costs what its three pieces cost, repeated.

That linearity makes the monthly figure easy to steer. A household washing hot five times a week at about $14 a month drops to about $5 just by switching to cold, no other change, the same nine dollars a month it would take real effort to find elsewhere on the bill. Count your true weekly loads, pick the temperature you honestly use, and the cost-per-use calculator returns your monthly cost directly.

Washer and dryer: pricing the laundry pair

A washing machine almost never works alone. For most loads it hands off to a dryer, and the two together are the real cost of doing laundry, which is why pricing the washer in isolation understates the trip. Here is the striking part: the dryer usually costs several times more to run than the washer. A standard electric dryer uses about 3 kilowatt-hours to dry a load, roughly $0.48 at a typical rate, as we work out in full in our dryer running-cost lab report. The washer on a cold cycle costs about $0.25. So the cheap-to-run partner is the washer, and the dryer is where the laundry money actually goes.

Add them and a cold-wash, standard-dry load costs about $0.73, of which the dryer is roughly two-thirds. Wash hot and the pair reaches about $1.15 a load. Over a year of five loads a week, the washer contributes somewhere near $65 to $175 depending on temperature, while the dryer alone contributes about $125, so the combined laundry bill lands in the low-to-mid hundreds of dollars a year for a typical household. Seeing the pair together reframes where to look for savings: the dryer is the larger target, and anything the washer does to send clothes there less wet pays off twice.

That last point is the link between the two machines. A washer that spins clothes drier, which efficient front-loaders do best, cuts the minutes the dryer’s heater has to run, trimming the larger of the two bills. So the highest-leverage laundry habits are a cold wash on a high spin speed, followed by an efficient dry, or air-drying where it is convenient. Price the pair, not the parts, and the priorities sort themselves out.

Whether washing at night is cheaper

Washing at night is cheaper only if your electricity plan charges less at night, and for many households it does not. On a standard flat-rate plan, every kilowatt-hour costs the same at 3am as it does at 6pm, so shifting the wash to the small hours changes nothing on the bill. The washer does not know or care what time it is; only the meter’s pricing does.

Where night washing pays is on a time-of-use or off-peak tariff. These plans divide the day into expensive peak hours and cheaper off-peak hours, often overnight and sometimes midday, and the price gap between them can be large. If you are on such a plan, running the washer during the cheap window lowers the cost of any load that uses electricity, and the effect is biggest on warm and hot washes drawing on an electric water heater, because those are the loads with real kilowatt-hours to shift. A cold wash saves little either way, since it uses so little power to begin with; the water cost does not change with the clock at all.

So the honest answer depends on your tariff, not on the machine. Check your electricity plan for peak and off-peak windows before rearranging your laundry around the clock. If you have them, batch your warm and hot loads into the cheap hours and let the water heater recover overnight. If you are on a flat rate, spend your effort on temperature and load size instead, which move the bill regardless of the hour.

ENERGY STAR washers and what they save

An ENERGY STAR washing machine is certified to beat federal minimums on both water and energy use, and both of those show up in the running cost. It uses less water per load, which trims the water bill on every wash and, on warm and hot loads, leaves less water to heat. It also extracts more water on a faster final spin, so clothes arrive at the dryer drier and the dryer runs less. The certification, in other words, targets exactly the three costs this report is built around.

The per-load saving is modest but compounding. An ENERGY STAR front-loader using a couple of gallons less than a standard machine, and heating that much less water on warm and hot loads, might save a few cents a wash directly, plus a few more cents on the drying side from the better spin. Across a year of regular laundry those cents add up to a real, if not dramatic, figure, and the machine tends to be gentler on clothes as a bonus. As always, the higher purchase price has to be weighed against the running-cost saving on your own load count, the same total-cost thinking we bring to every piece of gear we test.

Judge the machine by the yellow EnergyGuide label rather than the ENERGY STAR logo alone. The label estimates annual energy use and, on washers, gives an integrated water factor, so you can compare two certified machines against each other rather than just against the minimum. Feed the label’s numbers and your own rates into the cost-per-use calculator before you decide whether the efficient model repays its premium.

Your electricity and water rates swing it

The machine and the temperature set the shape of the cost, but your two rates set its size, and both vary widely by region. The electricity rate drives the heating cost, so it matters most on warm and hot washes; the water rate drives the water cost, so it matters on every load including cold. A blanket claim that washers are cheap or expensive to run means nothing without both rates attached.

Hold an efficient machine at five loads a week and see how the electricity rate moves a hot wash, where heating dominates:

• At 10 cents per kilowatt-hour: about $0.51 a hot load
• At 16 cents per kilowatt-hour: about $0.67 a hot load
• At 24 cents per kilowatt-hour: about $0.88 a hot load
• At 32 cents per kilowatt-hour: about $1.10 a hot load

The water rate works the same way on the water piece. Where combined water and sewer service is expensive, the water alone can exceed the motor and even rival the heating on a cold wash. Find both numbers on your bills, the electricity rate in cents per kilowatt-hour and the water rate per gallon or per hundred cubic feet, and run them rather than guessing. Our cost-per-use calculator takes both and returns your cost per load, per month, and per year at your exact rates.

The annual cost of running a washing machine

The yearly figure is the one you actually pay, and it follows straight from the per-load cost: multiply by loads per week and by 52. For an efficient machine at five loads a week and typical rates, washing cold works out to near $65 a year, warm to about $120, and hot to about $175, illustratively. The temperature you default to sets which of those numbers is yours.

Slide the inputs and the annual figure moves in step. A light household doing two loads a week pays under half; a busy one doing ten pays roughly double. Change the rates and the whole column shifts, with the electricity rate swinging the warm and hot cases most and the water rate lifting every case including cold. And the temperature mix matters as much as any of it: a household that washes mostly cold with the occasional hot load lands near the bottom of the range, while one that washes everything hot lands at the top, for laundry that is, in most cases, equally clean.

The annual view is where the cold-wash habit proves its worth. Switching five weekly loads from hot to cold trims roughly $100 off the year, a saving you capture once and keep, with no ongoing effort after you change the default. Do the arithmetic on your own numbers rather than a national average, because your rates, your load count, and your temperature mix each move the yearly total more than any generic figure can. The cost-per-use calculator returns your annual cost the moment you enter them.

How a washing machine compares to other big appliances

Set the washer next to the other appliances we have priced and it lands among the cheaper ones to run, which is worth knowing before you worry about it. On a cold wash it costs about $0.25 a load, a few dollars a month; even on hot it rarely reaches $15 a month for a typical household. That is less than most of the heavy hitters, and it reframes where the laundry money really sits.

Its own dryer partner is the clearest contrast: a standard electric dryer runs several times the cost of a cold wash, as our dryer running-cost lab report works out, which is why the pair belongs on one ledger. A dishwasher sits close to the washer in character, a short cycle a few times a week with its own water and heating costs, detailed in our dishwasher running-cost lab report. The steady drains are different animals: a refrigerator never switches off, so its small hourly cost runs every hour of the year, as our refrigerator running-cost lab report shows, and seasonal loads like an air conditioner or a space heater run for hours at a stretch, priced in our air conditioner running-cost lab report and our space heater running-cost lab report.

The lesson across all of them is the same one this report opened with: instantaneous wattage tells you almost nothing about the bill. What matters is energy per use times how often you use it, and for a washer the energy per use is small unless you heat the water. Judge each appliance on its own total, and the washer usually turns out to be a minor, controllable cost whose partner deserves more of your attention.

Tips that actually cut a washing machine’s running cost

If you want to trim what the washer costs, the levers are few and they follow straight from the three-part cost. Here they are in rough order of impact, none of which asks you to buy a new machine.

• Wash cold whenever the load allows. This is the big one. Cold skips the water heating entirely, cutting a hot wash by roughly two-thirds, and modern detergent cleans everyday laundry well without heat. Reserve warm and hot for genuinely soiled or sanitize loads.
• Run full loads, not many small ones. The washer uses close to its rated water whether the drum is half full or full, so a full load spreads that fixed water cost across more clothes. Do not overfill, which stops clothes moving and cleaning properly.
• Use a high spin speed. A faster final spin wrings out more water, so clothes reach the dryer less wet and the dryer, the pricier partner, runs shorter. This saves on the larger of the two laundry bills.
• Choose the eco or shorter cycle when it fits. Eco cycles use less water and often less heat, and for lightly soiled loads a shorter cycle cleans fine while drawing less of everything.
• Batch warm and hot loads into off-peak hours if, and only if, you are on a time-of-use tariff. On a flat rate this does nothing.
• Keep an eye on the water rate, not just the power rate. In areas with pricey water and sewer, full loads and an efficient machine matter more, because the water is a bigger share of every wash.

Each of these acts on a piece of the three-part cost, and the first two do most of the work for most households.

A worked example: one household, five loads a week

Put it together on a realistic case. You have an efficient washer, you do five loads a week, and you want the per-load, monthly, and yearly cost for cold, warm, and hot, at a typical $0.16 electricity rate and $0.015-per-gallon water.

The per-load figure. Motor is about two cents and water about $0.22 on every load. Add heating and a cold load is about $0.25, a warm load about $0.46, and a hot load about $0.67, illustratively.

The monthly figure. Five loads a week is about 22 loads a month. Cold that is near $5 a month, warm near $10, and hot near $14. The only thing that changed between them is how much water you heated.

The yearly figure. Five loads a week is 260 loads a year. Cold lands near $65 a year, warm near $120, and hot near $175. Those are the numbers that reach your bill, and the spread between them, about $110, is almost entirely water heating.

Now weigh the choice. If this household washes everything hot and switches to washing cold except for a weekly load of bedding, it moves from near the top of that range toward the bottom, saving roughly $100 a year for clothes that come out clean either way. Add a high spin speed and the dryer runs a little shorter too, trimming the larger partner bill. The machine did not decide any of it; the temperature dial and the load count did. Swap your own loads, temperature, and rates into the cost-per-use calculator to see your version of this example.

The bottom line

The cost to run a washing machine is small for the machine and large for the hot water, and once you separate the two the whole thing becomes predictable. The motor uses only about 0.15 kilowatt-hours a load, a few cents; the water adds about $0.22 on an efficient machine; and the water heating, which appears only on warm and hot washes, is what turns a $0.25 cold load into a $0.67 hot one. At five loads a week that is somewhere between about $65 and $175 a year, set almost entirely by the temperature you choose. Wash cold whenever the load allows and you capture most of the available saving, roughly $100 a year, with no change to how clean the clothes come out. Run full loads to spread the water cost, spin fast to cut the dryer’s larger bill, and shift warm and hot loads off-peak only if your tariff rewards it. Count your loads, check both your rates, and price the washer and its dryer together, and laundry becomes what it should be: a modest, controllable line you steer with the temperature dial, not a mystery on the bill.

A note from the bench: this lab report exists to hand you the running-cost arithmetic for a washing machine, not to steer you toward any particular machine, wash temperature, or utility plan. Every wattage, gallon, rate, and dollar figure above is an illustrative planning number built from typical ranges rather than measured on one model, and your real electricity rate, water and sewer rate, water heater fuel, machine, and habits will move the result enough to matter. The split between electricity and water assumes an electric water heater as the conservative case; a gas heater shifts the heating cost to your gas bill and usually lowers it. Nothing here is professional electrical, plumbing, or appliance-installation advice, and wash temperatures for sanitizing, cloth diapers, or medical laundry should follow the guidance of the relevant manufacturer or health authority rather than a cost table. Follow the maker’s instructions for your machine, and bring in a qualified electrician or plumber for any installation, wiring, or water-connection question before you rely on the numbers in this article.