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Kilowatts to Watts Calculator

Convert kilowatts to watts and back across the whole SI ladder: milliwatts, watts, kilowatts, megawatts, gigawatts. Every step is a factor of 1,000, and WattSimple names the real equipment that runs at whatever scale your answer lands on.

These are all power units: the rate at which energy moves, right now. Each step is a factor of 1,000: 1 kW = 1,000 W, 1 MW = 1,000 kW. For energy consumed over time, the kilowatt-hours your utility bills, use the kW to kWh converter instead.

Watts

1,000 W

Milliwatts
1,000,000 mW
Watts
1,000 W
Kilowatts
1 kW
Megawatts
0.001 MW
Gigawatts
0 GW

What that scale looks like

1,000 W is about a microwave, a toaster, or a space heater.

Typical running draws, not startup surge or nameplate maximums. See the appliance wattage chart for measured figures by appliance.

Frequently asked questions

Exactly 1,000. The prefix kilo- means one thousand, so 1 kW = 1,000 W, 2.5 kW = 2,500 W, and 0.75 kW = 750 W. To go from watts to kilowatts, divide by 1,000.

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WattSimple. (2026, July 19). Kilowatts to Watts Calculator. https://wattsimple.com/convert/kilowatts-to-watts

MLA

"Kilowatts to Watts Calculator." WattSimple, 19 July 2026, https://wattsimple.com/convert/kilowatts-to-watts.

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Sources & standards

This tool's methodology and data follow US standards and authoritative public datasets: