Calorie to Watt-hour Converter
Convert calories to watt-hours with this free energy converter. The exact relationship used on this page is 1 calorie = 0.00116222222222 watt-hours. Type any number — the result updates instantly, works on phones and desktops, and is ready to copy into homework, a spec sheet, or a shopping list.
Formula: Watt-hour = Calorie × 0.00116222222222
How to convert calories to watt-hours
- Enter the value in calories in the converter.
- Read the equivalent amount in watt-hours.
- Use the swap link if you need watt-hour to calorie instead.
- Check the table for common values without typing.
Worked examples
- 1 cal = 0.001162222222 Wh
- 5 cal = 0.005811111111 Wh
- 10 cal = 0.01162222222 Wh
- 25 cal = 0.02905555556 Wh
Conversion table
Common calories values converted to watt-hours.
| cal | Wh |
|---|---|
| 1 | 0.001162222222 |
| 2 | 0.002324444444 |
| 3 | 0.003486666667 |
| 4 | 0.004648888889 |
| 5 | 0.005811111111 |
| 6 | 0.006973333333 |
| 7 | 0.008135555556 |
| 8 | 0.009297777778 |
| 9 | 0.01046 |
| 10 | 0.01162222222 |
| 20 | 0.02324444444 |
| 50 | 0.05811111111 |
| 100 | 0.1162222222 |
| 250 | 0.2905555556 |
| 500 | 0.5811111111 |
| 1,000 | 1.162222222 |
About this conversion
Calorie (cal) and Watt-hour (Wh) are both energy units. Energy converters connect food labels (kcal), electricity bills (kWh), physics (joules), and heating (BTU). Bookmark this URL when you convert calories to watt-hours often, then explore related pairs in the same category if you need a different target unit.
Need the other direction? Open the watt-hour to calorie converter.
FAQ
How many watt-hours are in 1 calorie?+
1 calorie equals 0.00116222222222 watt-hours.
What is the formula to convert calories to watt-hours?+
Watt-hour = Calorie × 0.00116222222222
How do I convert calories to watt-hours by hand?+
Multiply the calorie value by 0.00116222222222. Example: 10 calories × 0.00116222222222 = 0.0116222222222 watt-hours.
Is this cal to Wh converter accurate?+
Yes. Linear conversions use internationally agreed factors relative to SI. Temperature and inverse fuel units use the standard offset or reciprocal formulas, not a guessed scale factor.