kilowatt-hours to watt-hours
Convert kilowatt-hour to watt-hour — instant, free, with the formula shown.
1 kWh=1000 Wh
How to convert kilowatt-hour to watt-hour
To convert kilowatt-hour to watt-hour, multiply by 1000:
Wh = kWh × 1000
For example, 10 kWh × 1000 = 10000 Wh.
kWh to Wh conversion table
| kilowatt-hours (kWh) | watt-hours (Wh) |
|---|---|
| 1 kWh | 1000 Wh |
| 2 kWh | 2000 Wh |
| 5 kWh | 5000 Wh |
| 10 kWh | 10000 Wh |
| 25 kWh | 25000 Wh |
| 50 kWh | 50000 Wh |
| 100 kWh | 100000 Wh |
| 250 kWh | 250000 Wh |
| 500 kWh | 500000 Wh |
| 1000 kWh | 1000000 Wh |
Other kilowatt-hour conversions
Convert to watt-hour from another unit
kWh to Wh — frequently asked
How many watt-hours are in 1 kilowatt-hour?
1 kilowatt-hour = 1000 watt-hours (kWh × 1000 = Wh).
What is the formula to convert kilowatt-hour to watt-hour?
Multiply your kilowatt-hour value by 1000 to get watt-hour.
How do I convert 10 kilowatt-hours to watt-hours?
10 kWh = 10000 Wh. For 100 kWh the answer is 100000 Wh. Use the calculator on this page for any other value.
When to convert kilowatt-hour to watt-hour
1Electricity bills (kWh)
2Nutrition labels (kcal / food cal)
3HVAC and heating (BTU, therms)
4Physics and chemistry (J, eV)
Energy conversion — common questions
Is a food calorie the same as a calorie?
No — a food 'Calorie' (capital C) actually means 1 kilocalorie = 1,000 small calories = 4,184 J. Nutrition labels typically write 'cal' meaning kcal.
How many joules in 1 kWh?
1 kWh = 3,600,000 J (3.6 MJ). Because 1 kW × 1 hour = 1,000 W × 3,600 s = 3,600,000 J.
What is a BTU?
British Thermal Unit — the energy required to raise 1 pound of water by 1 °F. 1 BTU ≈ 1,055 J.
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