Watts

Typical figures for this type, from the sources at the foot of this page. Watts vary by model and age. Check the label on your own appliance and enter it for an exact answer.

Running, typical
1,000 W
Running, low to high
500 W to 1,320 W
Starting
1,200 W1,000 W to 2,300 W, 1.2 times running
Typical use a day
1 hhours the motor actually runs
Average draw while on
1,000 W
Voltage
120 V
  • Assumes the motor runs the whole time; real use is often less.

The math

Worked with the typical figure, as the calculator does it.

  1. Output1,000 W running, so the station's continuous output must be at least 1,000 W.
  2. Surge1,200 W to start, so its surge rating must be at least 1,200 W.
  3. Average draw1,000 W: the running watts count for every hour it is on, as if the motor never paused.
  4. A typical day1,000 W × 1 h = 1,000 Wh a day.
  5. Typical 1 h a day1,000 W × 1 h = 1,000 Wh usable, ÷ 0.85 = 1,176 Wh of rated capacity.
  6. 8 hours of running1,000 W × 8 h = 8,000 Wh usable, ÷ 0.85 = 9,412 Wh of rated capacity.
  7. On the EcoFlow DELTA Pro Ultra X12,288 Wh × 0.85 = 10,445 Wh usable, ÷ 1,000 W = 10.4 h.

Stations that run it

Every power station in the data with this appliance alone plugged in, at 85% efficiency. Type the running watts from your own label and the table works it out again.

Add it to the runtime calculator with the rest of your list

What moves the number

The motor starts again whenever the drum or agitator changes direction, and each start asks for about 1,200 W, up to 2,300 W on some machines. Running draw is 500 W to 1,320 W, with top and front loaders in the same range.

Questions

How many watts does a washing machine use?
About 1,000 W while running, from 500 W to 1,320 W across the models in our sources. It needs about 1,200 W for a moment at start. Watts vary by model and age. Check the label on your own appliance and enter it for an exact answer.
Can a portable power station run a washing machine?
Yes. 43 of the 54 power stations in the Enough Watts data set can power it on its own. It takes at least 1,000 W of continuous output and a surge rating of 1,200 W.
How long will a power station run a washing machine?
It depends on the battery. At 85% efficiency the smallest station that powers it, the BLUETTI Elite 100 V2 (1,024 Wh), gives about 52 min. The largest, the EcoFlow DELTA Pro Ultra X (12,288 Wh), gives about 10.4 h.
Why does a washing machine need a high surge rating?
Its motor draws about 1,200 W for a moment at start, 1.2 times its 1,000 W running figure. A station whose surge rating is below that cannot start it, even when the continuous output is enough. 44 of the 54 stations pass that check.

Sources

Researched from these pages, then checked against them a second time. The check corrected at least one figure.

  1. GE 4.2 cu. ft. Capacity Washer with Stainless Steel Basket - GTW485ASJWS maker product page, checked
  2. GE ENERGY STAR 4.8 cu. ft. Smart Front Load Washer - GFW550SSNWW maker product page, checked
  3. Generator Wattage Chart: Common Appliances & Tools (Champion Power Equipment) generator maker guide, checked
  4. Choosing a Generator, Quick Reference Wattage flyer (Champion Power Equipment) generator maker guide, checked

We read published figures and do the math; we do not measure appliances. The methodology states every formula on this page. Capacities are rated watt hours: 1,000 Wh rated gives 850 Wh usable at the default.