watt-hours to kilocalories
Convert watt-hour to kilocalorie (food cal) — instant, free, with the formula shown.
How to convert watt-hour to kilocalorie (food cal)
To convert watt-hour to kilocalorie (food cal), multiply by 0.86042065:
For example, 10 Wh × 0.860421 = 8.604207 kcal.
Wh to kcal conversion table
| watt-hours (Wh) | kilocalories (kcal) |
|---|---|
| 1 Wh | 0.860421 kcal |
| 2 Wh | 1.720841 kcal |
| 5 Wh | 4.302103 kcal |
| 10 Wh | 8.604207 kcal |
| 25 Wh | 21.510516 kcal |
| 50 Wh | 43.021033 kcal |
| 100 Wh | 86.042065 kcal |
| 250 Wh | 215.105163 kcal |
| 500 Wh | 430.210325 kcal |
| 1000 Wh | 860.42065 kcal |
Other watt-hour conversions
Convert to kilocalorie (food cal) from another unit
Wh to kcal — frequently asked
How many kilocalories are in 1 watt-hour?
1 watt-hour = 0.860421 kilocalories (Wh × 0.860421 = kcal).
What is the formula to convert watt-hour to kilocalorie (food cal)?
Multiply your watt-hour value by 0.86042065 to get kilocalorie (food cal).
How do I convert 10 watt-hours to kilocalories?
10 Wh = 8.604207 kcal. For 100 Wh the answer is 86.042065 kcal. Use the calculator on this page for any other value.
When to convert watt-hour to kilocalorie (food cal)
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.