How Many Amps Does a Washing Machine Use?
Washing Machine draws about 4.2 amps at 120 volts (500 watts running) and briefly spikes to around 10 amps at startup. At 4.2 A, a washing machine fits comfortably on a standard 15 A or 20 A household circuit.
Amps = watts ÷ volts. Enter the wattage from your appliance's nameplate or label for an exact figure.
Current draw: a washing machine
4.2 A
- At 120 V
- 500 W
- Typical breaker
- 15 A
Breaker figure is guidance for a simple resistive load; confirm against the nameplate and a licensed electrician.
Washing Machine amperage at 120 V and 240 V
Same 500 W load: the current halves when the voltage doubles. Washing Machine is typically a 120 V appliance in US homes.
| Draw | Watts | Amps at 120 V | Amps at 240 V |
|---|---|---|---|
| Running | 500 W | 4.2 A | 2.1 A |
| Starting (surge) | 1,200 W | 10 A | 5 A |
The startup surge lasts a fraction of a second; it matters for generator sizing and breaker trip curves, not for your electric bill.
Breaker and circuit for a washing machine
At 4.2 A, a washing machine fits comfortably on a standard 15 A or 20 A household circuit. For a dedicated circuit, guidance is a 15 A breaker with 14 AWG copper (75°C terminations).
Guidance only: actual circuit sizing depends on your unit's nameplate, wire run length, and local code. Confirm with a licensed electrician. See the wire & breaker size chart for the full NEC ampacity table.
Measure what a washing machine actually draws
The figures above are typical ratings. A plug-in power meter between the outlet and the cord shows the real amps and watts with nothing opened up. A clamp meter reads one conductor at a time, so it is the tool for hardwired and 240 V circuits; clamped around a whole cord it reads close to zero.
We earn a commission if you buy through links on this page, at no extra cost to you. It does not change what we recommend. See our affiliate disclosure. As an Amazon Associate I earn from qualifying purchases.
Plug-in power meter
P3 International Kill A Watt P4400
Best for: Measuring what one plug-in appliance really uses
Clamp meter
Fluke 323
Best for: Measuring what a hardwired circuit actually draws, even in a crowded panel
Frequently asked questions
Ask AI about this
Open an AI assistant with a question grounded in this page.
Amp draw of other appliances
Cite or link to this pageAPA · MLA · Chicago · HTML
Free to cite, quote and link. Copy a ready-made citation: the link back is all we ask.
- APA
WattSimple. (2026, July 16). How Many Amps Does a Washing Machine Use? https://wattsimple.com/how-many-amps/washing-machine
- MLA
"How Many Amps Does a Washing Machine Use?" WattSimple, 16 July 2026, https://wattsimple.com/how-many-amps/washing-machine.
- Chicago
WattSimple. "How Many Amps Does a Washing Machine Use?" Last modified July 16, 2026. https://wattsimple.com/how-many-amps/washing-machine.
- HTML link
<a href="https://wattsimple.com/how-many-amps/washing-machine">How Many Amps Does a Washing Machine Use?</a> (WattSimple)