Convert Calories to Kilowatt-hours
One calorie equals 0.0000011622 kilowatt-hours. Type any value to convert calories to kilowatt-hours instantly — with a full reference table below.
Convert Calories to Kilowatt-hours
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How to convert Calories to Kilowatt-hours
To convert calories to kilowatt-hours, multiply by 0.0000011622. One calorie equals 0.0000011622 kWh, and one kilowatt-hour equals 860,420.7 cal.
- Take the value in calories — for example 7.5 cal.
- Multiply by 0.0000011622 (the number of kilowatt-hours in one calorie).
- 7.5 × 0.0000011622 = 0.0000087167 kWh.
Calories to Kilowatt-hours conversion table
| Calories | Kilowatt-hours |
|---|---|
| 1 cal | 0.0000011622 kWh |
| 2 cal | 0.0000023244 kWh |
| 5 cal | 0.0000058111 kWh |
| 10 cal | 0.0000116222 kWh |
| 20 cal | 0.0000232444 kWh |
| 50 cal | 0.0000581111 kWh |
| 100 cal | 0.000116222 kWh |
| 200 cal | 0.000232444 kWh |
| 500 cal | 0.000581111 kWh |
| 1,000 cal | 0.00116222 kWh |
| 2,000 cal | 0.00232444 kWh |
| Kilowatt-hours | Calories |
|---|---|
| 1 kWh | 860,420.7 cal |
| 2 kWh | 1,720,841 cal |
| 5 kWh | 4,302,103 cal |
| 10 kWh | 8,604,207 cal |
| 20 kWh | 17,208,413 cal |
| 50 kWh | 43,021,033 cal |
| 100 kWh | 86,042,065 cal |
| 200 kWh | 172,084,130 cal |
| 500 kWh | 430,210,325 cal |
| 1,000 kWh | 860,420,650 cal |
| 2,000 kWh | 1,720,841,300 cal |
About converting Calories to Kilowatt-hours
Calories (cal) and Kilowatt-hours (kWh) are both units of energy. The exact factor is 1 cal = 0.0000011622 kWh, so multiply by 0.0000011622 to go from calories to kilowatt-hours (or divide to go back).
The conversion runs entirely in your browser. Need the reverse? Use the Kilowatt-hours to Calories converter, or the full unit converter for every unit at once.
Real-world energy in calories and kilowatt-hours
| Example | Calories | Kilowatt-hours |
|---|---|---|
| A 100 W bulb running for one hour | 86,042.07 cal | 0.1 kWh |
| A smartphone battery (≈19 Wh) | ≈ 16,563.1 cal | ≈ 0.01925 kWh |
| One kilowatt-hour | 860,420.7 cal | 1 kWh |
“≈” marks typical values; the rest are defined or measured figures.
The units
The thermochemical calorie: exactly 4.184 J — energy to warm 1 g of water by about 1 °C.
Used for: Chemistry. Food 'Calories' are kilocalories.
1,000 watt-hours, exactly 3.6 MJ — the 'unit' on electricity bills.
Used for: Electricity bills and EV batteries.
The thermochemical calorie is exactly 4.184 J and a kilowatt-hour is exactly 3.6 MJ, so these factors are exact.