Energy conversion
1 thermochemical calorie (cal) equals 0.001162222222 watt-hour (Wh). Enter any value below to convert from cal to Wh.
Enter a value and choose units. Results update instantly.
1 cal = 0.0011622222 Wh
| Unit | Value |
|---|---|
| Joule J | 4.184 |
| Kilojoule kJ | 0.004184 |
| Thermochemical calorie cal | 1 |
| Kilocalorie kcal | 0.001 |
| Watt-hour Wh | 0.0011622222 |
| Kilowatt-hour kWh | 0.0000011622 |
| BTU (International Table) BTUₕᵀ | 0.0039656668 |
| Foot-pound ft·lb | 3.0859600326 |
| Electronvolt eV | 2.6114473968e19 |
Formula
Use this relationship for a direct conversion:
2 cal = 0.0023244444 Wh.
The thermochemical calorie and International Table BTU are named explicitly to avoid ambiguous legacy definitions.
Quick reference
| Thermochemical calorie (cal) | Watt-hour (Wh) |
|---|---|
| 0.01 | 0.0000116222 |
| 0.1 | 0.0001162222 |
| 1 | 0.0011622222 |
| 2 | 0.0023244444 |
| 5 | 0.0058111111 |
| 10 | 0.0116222222 |
| 25 | 0.0290555556 |
| 50 | 0.0581111111 |
| 100 | 0.1162222222 |
| 1,000 | 1.1622222222 |
From unit
Exactly 4.184 joules.
Symbol: cal
To unit
The energy from one watt sustained for one hour.
Symbol: Wh
Keep converting
Source
Definitions are checked against NIST SP 811: Energy units. Calculations use full internal precision before display rounding.
View the complete energy converterQuestions
Use the formula Wh = cal x 0.001162222222. 1 thermochemical calorie (cal) equals 0.001162222222 watt-hour (Wh).
Both unit definitions use exact factors. Only the displayed decimal may be rounded.
