Watt-hour to Kilowatt-hour Converter

Type in either field — conversion updates instantly in both directions.

Formula: kWh = Wh × 0.001
Quick conversion table
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How to convert Watt-hour to Kilowatt-hour

Watt-hours and Kilowatt-hours are energy units used in physics, nutrition, and electrical engineering. One Wh equals 0.001 kWh. Use this converter for electricity bills, dietary calorie counts, and scientific calculations.

Formula: kWh = Wh × 0.001
Reverse: Wh = kWh × 1000