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Watts to Kilowatts Calculator: W to kW

Convert watts to kilowatts (and back), plus megawatts and horsepower, in one step. Watts and kilowatts are both units of power; a kilowatt is simply 1,000 watts. Enter a value in any unit to see the rest. After kilowatt-hours: the energy unit on your bill? Use the watts to kWh converter instead.

1 kW = 1,000 W · 1 MW = 1,000,000 W · 1 hp ≈ 746 W. These are power units. For energy over time (kWh), use the watts-to-kWh converter below.

Kilowatts

1.5 kW

Watts
1,500 W
Kilowatts
1.5 kW
Megawatts
0.0015 MW
Horsepower
2.012 hp

Frequently asked questions

Divide the watts by 1,000. A kilowatt (kW) is 1,000 watts, so 1,500 watts ÷ 1,000 = 1.5 kW. To go from kilowatts back to watts, multiply by 1,000.

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

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

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Sources & standards

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