Table Of Contents
Watt-hour to kilocalories Conversion
1 watt-hour (W⋅hr) is equal to 0.8604206501 kilocalories (kcal).
1 W⋅hr = 0.8604206501 kcal
or
1 kcal = 1.162222222 W⋅hr
Formula
To convert a energy from watt-hour (W⋅hr) to kilocalories (kcal), divide the energy in watt-hour by 1.162222222
e(kcal) = e(W⋅hr) / 1.162222222
Examples:
Convert 50 watt-hour to kilocalories:
e(kcal) = 50W⋅hr / 1.162222222 = 43.0210325 kcal
Conversion table
| Watt-hour (W⋅hr) | Kilocalories (kcal) |
|---|---|
| 1 W⋅hr | 0.86042065 kcal |
| 2 W⋅hr | 1.7208413 kcal |
| 3 W⋅hr | 2.58126195 kcal |
| 5 W⋅hr | 4.30210325 kcal |
| 10 W⋅hr | 8.604206501 kcal |
| 20 W⋅hr | 17.208413002 kcal |
| 25 W⋅hr | 21.510516252 kcal |
| 50 W⋅hr | 43.021032505 kcal |
| 100 W⋅hr | 86.04206501 kcal |
| 250 W⋅hr | 215.105162524 kcal |
| 500 W⋅hr | 430.210325048 kcal |
| 1000 W⋅hr | 860.420650096 kcal |
| Kilocalories (kcal) | Watt-hour (W⋅hr) |
|---|---|
| 1 kcal | 1.162222222 W⋅hr |
| 2 kcal | 2.324444444 W⋅hr |
| 3 kcal | 3.486666667 W⋅hr |
| 5 kcal | 5.811111111 W⋅hr |
| 10 kcal | 11.622222222 W⋅hr |
| 20 kcal | 23.244444444 W⋅hr |
| 25 kcal | 29.055555556 W⋅hr |
| 50 kcal | 58.111111111 W⋅hr |
| 100 kcal | 116.222222222 W⋅hr |
| 250 kcal | 290.555555556 W⋅hr |
| 500 kcal | 581.111111111 W⋅hr |
| 1000 kcal | 1162.222222222 W⋅hr |
Frequently asked questions
How do I convert watt-hour to kilocalories?
Divide the value in watt-hour by 1.162222222 to get the result in kilocalories. For example, 5 W⋅hr ÷ 1.162222222 = 4.30210325 kcal.
How many kilocalories are in 1 watt-hour?
1 watt-hour (W⋅hr) is equal to 0.86042065 kilocalories (kcal).
How do I convert kilocalories back to watt-hour?
Use the inverse operation: multiply the value in kilocalories by 1.162222222 to get the result in watt-hour.
How accurate is the watt-hour to kilocalories conversion?
The converter multiplies by the conversion factor 1.162222222 and rounds the result to 9 decimal places by default. You can increase or reduce the precision with the digits option on this page.
Sources
Conversion factors are based on internationally recognised standards:
- BIPM — The International System of Units (SI Brochure, 9th edition)
- NIST Guide to the SI, Appendix B.8: Factors for Units Listed Alphabetically (NIST SP 811, 2008 edition)
- NIST Guide to the SI (SP 811), Footnotes (notes 22 and 23)
- CODATA Value: electron volt-joule relationship (NIST Fundamental Physical Constants)