How Much Does It Cost to Run a Washing Machine?
About $0.06-$0.30 per load, or roughly $50-$100 per year for a household running 5 loads a week. The exact number depends on your electricity rate, machine efficiency, load size, and — by far the biggest factor — whether you wash in cold, warm, or hot water. At the 2024 US average rate of $0.16/kWh, a cold wash runs about $0.06, a warm wash about $0.27, and a hot wash about $0.50 per load.
Want to estimate your specific washer or rate? Use the washing machine page of the appliance calculator (pre-loaded at 500W), or compare laundry against other household loads on the efficiency rankings.
The Formula
Cost per load = (motor kWh + water-heating kWh) × price per kWh
A washing machine has two energy buckets. The motor draws ~500W during the wash and ~1,200W briefly during the spin — about 0.4 kWh total over a 50-minute cycle. The water heater bucket only applies on warm or hot washes, and on those it usually dwarfs the motor.
Worked example (500W washer, 50-minute warm cycle, $0.16/kWh): 0.4 kWh motor + 1.3 kWh water heating = 1.7 kWh × $0.16 = $0.27 per load.
Cost by Loads per Week (Warm Wash)
For a typical 500W washer doing 50-minute warm cycles at $0.16/kWh. The average US household does about 5 loads a week.
| Loads per week | kWh per week | Cost per week | Cost per month | Cost per year |
|---|---|---|---|---|
| 3 | 5.10 | $0.82 | $3.53 | $42 |
| 5 (typical household) | 8.50 | $1.36 | $5.89 | $71 |
| 7 | 11.90 | $1.90 | $8.24 | $99 |
| 10 | 17.00 | $2.72 | $11.78 | $141 |
Cost by Wash Temperature
Wash temperature is the largest driver of per-load cost. The table below shows the kWh and dollar cost at $0.16/kWh for a typical 500W washer with electric water heating.
| Wash type | kWh per load | Cost per load | 5 loads/wk · year | Notes |
|---|---|---|---|---|
| Cold wash (cold/cold) | 0.4 | $0.06 | $17 | Motor only — no water heating. |
| Warm wash (warm/cold) | 1.7 | $0.27 | $71 | ~7 gal of hot water added. |
| Hot wash (hot/cold) | 3.1 | $0.50 | $129 | ~15 gal of hot water heated. |
Cost Per Load by Rate and Wash Type
The same load costs very different amounts depending on your electricity rate. The table below shows cost per load across common US rates for cold, warm, and hot washes.
| Rate ($/kWh) | Cold wash | Warm wash | Hot wash |
|---|---|---|---|
| $0.10 | $0.04 | $0.17 | $0.31 |
| $0.15 (near US avg) | $0.06 | $0.26 | $0.46 |
| $0.20 | $0.08 | $0.34 | $0.62 |
| $0.30 | $0.12 | $0.51 | $0.93 |
Assumes electric water heating. Homes with a gas water heater see much smaller warm/hot premiums — the cold-wash column is essentially the entire bill.
What Drives the Cost
Water heating is usually the bigger cost
The washer motor itself only uses about 0.4 kWh per load. A hot wash adds another ~2.7 kWh of electric water heating — almost seven times more than the motor. That is why switching one variable (the temperature dial) can change the bill by 8x. If your water heater is gas, the gap shrinks because gas is much cheaper per BTU.
Front-load vs top-load
Front-load washers use 40-50% less water per load (about 13 gallons vs 25+), which directly cuts water-heating energy on warm and hot cycles. They also spin at 1,200+ RPM versus ~700 RPM on top-loaders, so clothes come out drier — saving another 10-20% of dryer electricity downstream. Across a year, a front-load typically saves $30-$60 in electricity plus 6,000+ gallons of water.
Energy Star certification
Energy Star washers use at least 25% less energy and 33% less water than the federal minimum. The label is most meaningful on top-load machines (where there is still wide variation) and on machines older than ten years (where standards have tightened repeatedly). On a brand-new front-load, the gap to non-Energy-Star is small.
Load size and frequency
A washer uses nearly the same energy whether it is half-full or full. Running two half loads instead of one full load roughly doubles the bill for the same amount of laundry. Most modern washers have an auto-sensing fill that adjusts water level, but the motor still spins the drum either way.
How to Lower the Cost
Wash in cold water
The single biggest lever. Cold washes skip water heating entirely, cutting per-load electricity by roughly 90%. Modern cold-water detergents handle everyday loads without any cleaning trade-off.
Run full loads
Two half loads cost almost twice as much as one full load. Wait until the drum is 75-90% full before running a cycle.
Use off-peak rates if available
If your utility offers time-of-use rates, doing laundry overnight or on weekends can cut the per-kWh price by 30-50%. Check your utility for “TOU” or “time-of-day” plans.
Replace machines over 10 years old
A pre-2011 top-loader uses roughly twice the water and energy of a modern front-load. See our old-vs-new break-even guide.
Recommended picks
Ways to Cut Your Laundry Bill
Because water heating dwarfs the motor, the highest-ROI changes are anything that lets you wash cold or use less water. A cold-water detergent and a front-load machine together typically halve the annual cost.
Energy Star Front-Load Washer
Most efficient design
Front-load washers use 40-50% less water than top-loaders, which directly cuts the water-heating cost — usually the largest line item on a wash.
Cold-Water Laundry Detergent
Make cold washes work
Detergents formulated for cold water clean as well in 60°F as a hot wash in 130°F. Switching to cold cuts wash-cycle electricity by ~90%.
Smart Plug Energy Monitor
Measure actual draw
A plug-in energy meter tells you exactly how many kWh a hot vs cold load uses on your specific machine — far more accurate than nameplate watts.
Washing Machine Cleaner Tablets
Keep the drum efficient
A clogged or dirty drum forces longer cycles. A monthly cleaning tablet keeps the machine spinning at full efficiency and avoids re-wash loads.
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Energy Star Guide
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Frequently Asked Questions
How much does it cost to run a washing machine per load?
On the motor alone, a typical 500W washer uses about 0.42 kWh per 50-minute cycle, costing roughly $0.07 per load at the US average of $0.16/kWh. Add electric water heating and a warm wash runs about $0.27 per load, while a hot wash is closer to $0.50. A household doing 5 loads a week typically spends $50-$100 a year on laundry electricity.
Does washing with cold water actually save money?
Yes — and it is the single biggest lever. Roughly 90% of a hot-wash load's electricity goes to heating the water, not running the washer. Switching from hot to cold cuts the per-load cost from around $0.50 to about $0.06 at the US average rate. Modern cold-water detergents are formulated to dissolve and clean at 60°F, so for everyday loads there is essentially no cleaning trade-off.
Are front-load washers cheaper to run than top-load?
Yes, noticeably. Front-load washers use 40-50% less water per load, which directly cuts the water-heating energy on warm and hot washes. They also extract more water in the spin cycle (1,200+ RPM versus ~700 RPM on top-loaders), so clothes go into the dryer drier — saving another 10-20% of dryer energy. Over a year of 5 loads a week, a front-load typically saves $30-$60 in electricity plus 6,000+ gallons of water.
How much does water heating add to the cost?
On a hot wash, water heating is usually 80-90% of the total per-load energy. A typical hot cycle heats roughly 15 gallons of water from ~55°F to ~130°F, which takes about 2.7 kWh of an electric water heater — versus the 0.4 kWh the washer motor itself uses. That is why a hot wash at the US average rate runs around $0.50/load while a cold wash is closer to $0.06. If your water heater is gas, the warm/hot premium is much smaller.
Should I replace an old washing machine to save on electricity?
If your washer is from before 2011, probably yes. Federal Energy Star standards tightened sharply that year, and modern front-loaders use roughly half the water and energy of a 2000s top-loader. A typical household saves $40-$80 a year on combined water and electricity, plus more on dryer energy thanks to higher spin speeds. Payback on a $700-$1,200 machine is 8-15 years on energy alone, but most washers last 10-13 years.
Does the washer wattage on the sticker tell me the real cost?
Not really. The nameplate shows peak motor draw, but the motor only runs at full power during the spin cycle. Most of the cost on a warm or hot wash is electric water heating, which happens outside the washer itself. The best number is the Energy Guide yellow sticker's annual kWh estimate — it bundles motor, water heating, and standby together for a realistic figure.