How to convert kilowatt-hours to kilocalories
Formula: kcal = kWh × 860.421
Worked example: 100 kWh → 100 × 860.421 = 86,042.1 kcal
One kWh is about 860 kcal. A 75 kg person cycling at moderate effort burns roughly 500 kcal an hour, or only about 0.58 kWh, which shows how much energy electricity delivers for a few cents.
Kilowatt-hours to kilocalories conversion chart
| Kilowatt-hours (kWh) | Kilocalories (kcal) |
|---|---|
| 1 kWh | 860.421 kcal |
| 2 kWh | 1,720.84 kcal |
| 3 kWh | 2,581.26 kcal |
| 4 kWh | 3,441.68 kcal |
| 5 kWh | 4,302.1 kcal |
| 6 kWh | 5,162.52 kcal |
| 7 kWh | 6,022.94 kcal |
| 8 kWh | 6,883.37 kcal |
| 9 kWh | 7,743.79 kcal |
| 10 kWh | 8,604.21 kcal |
| 12 kWh | 10,325 kcal |
| 15 kWh | 12,906.3 kcal |
| 20 kWh | 17,208.4 kcal |
| 25 kWh | 21,510.5 kcal |
| 30 kWh | 25,812.6 kcal |
| 40 kWh | 34,416.8 kcal |
| 50 kWh | 43,021 kcal |
| 75 kWh | 64,531.5 kcal |
| 100 kWh | 86,042.1 kcal |
| 250 kWh | 215,105 kcal |
| 500 kWh | 430,210 kcal |
| 1,000 kWh | 860,421 kcal |
What is a kilowatt-hour?
The kilowatt-hour equals 1,000 watt-hours, or 3.6 megajoules. It is the unit on every electricity bill and for electric car batteries: a 2,000 W heater running for 3 hours uses 6 kWh.
What is a kilocalorie?
The kilocalorie equals 1,000 small calories, or 4.184 kilojoules. It is the Calorie printed on US Nutrition Facts labels and used in diet and exercise tracking: an adult needs roughly 2,000 to 2,500 kcal a day.