Convert joules (J), calories (cal), kilowatt-hours (kWh), BTU, and other energy units. Energy is the capacity to do work; the joule (J) is the SI unit (1 J = 1 N·m). Nutritional calories and electrical kWh use different reference definitions tied to joules.
This energy converter transforms values from Calories (cal) to Watt Hours (Wh). Results update instantly using the exact conversion factor.
The calorie (cal) is a unit of energy; 1 cal ≈ 4.184 J (thermochemical calorie).
The Watt Hours (Wh) is a unit of energy in the Energy category.
1 cal ÷ 860.42065 = 0.001162 Wh
Wh = cal ÷ 860.42065
To convert cal to Wh, divide the value in cal by 860.42065 (since 1 cal = 0.001162 Wh). Equivalently, multiply by 0.001162. Example: 1 cal = 1 cal × 0.001162 = 0.001162 Wh.
10 cal = 0.011622 Wh ÷ 860.42065 = 10 cal
Common values from cal to Wh.
| cal | Wh |
|---|---|
| 1 | 0.0012 |
| 2 | 0.0023 |
| 3 | 0.0035 |
| 4 | 0.0046 |
| 5 | 0.0058 |
| 6 | 0.007 |
| 7 | 0.0081 |
| 8 | 0.0093 |
| 9 | 0.0105 |
| 10 | 0.0116 |
| 11 | 0.0128 |
| 12 | 0.0139 |
| 13 | 0.0151 |
| 14 | 0.0163 |
| 15 | 0.0174 |
| 16 | 0.0186 |
| 17 | 0.0198 |
| 18 | 0.0209 |
| 19 | 0.0221 |
| 20 | 0.0232 |