Watt-hour to Calorie
Convert Watt-hour to Calorie instantly. Free online engineering unit converter with exact formula, conversion table and FAQ.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
30+ categories
6,500+ units
Instant results
Offline ready
Converter
Engineering Converter
Convert common stress, force, torque, power, and energy units used in engineering.
Context values
Some unit families need one extra value for a physically accurate result.
Use the converter to see the formula.
Results update instantly for Watt-hour to Calorie conversions.
Reserved above the conversion cards and below the converter.
Formula
cal = Wh × 860.421
Wh = cal × 0.00116222
Conversion table
| 1 Wh | 860.421 cal |
| 5 Wh | 4302.1 cal |
| 10 Wh | 8604.21 cal |
| 20 Wh | 17208.4 cal |
| 50 Wh | 43021 cal |
| 100 Wh | 86042.1 cal |
| 500 Wh | 430210 cal |
| 1000 Wh | 860421 cal |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
What is the source unit in this conversion?
The source unit is the Watt-hour (Wh). A watt-hour is 3,600 joules.
What is the destination unit in this conversion?
The destination unit is the Calorie (cal). A thermochemical calorie is 4.184 joules.
How do I convert Watt-hour to Calorie?
Multiply the Watt-hour value by 860.421. For example, 10 Wh × 860.421 = 8604.21 cal.
Is the Watt-hour to Calorie conversion exact?
Yes. Both units belong to the same engineering measurement family (energy), so the ratio between them is a fixed, defined value rather than a measured approximation.
Where is this conversion commonly used?
It's used whenever a value expressed in Watt-hour needs to be compared with, or reported in, Calorie, such as in engineering, scientific, or industrial calculations.
Can I convert Calorie back to Watt-hour?
Yes. Multiply the Calorie value by 0.00116222 to get Watt-hour.
Reserved between the FAQ and the article so the page stays balanced.
About this conversion
This page converts Watt-hour (Wh) to Calorie (cal) within the engineering converter.
A watt-hour is 3,600 joules. A thermochemical calorie is 4.184 joules.
The formula is cal = Wh × 860.421, based on each unit's fixed relationship to the energy base unit.
The conversion is exact, since it relies on a fixed numerical ratio between the two units rather than a measured or approximate value.
Use the calculator above for instant results, or the table below for common Watt-hour values already converted to Calorie.