Quick answer: 1 Calorie in Watt-hour (Wh)
1 cal equals 0.00116222 Wh. To convert Calorie to Watt-hour (Wh), multiply by 0.00116222 using the free calculator above — no signup needed.
Energy & Work units
Every unit in this category with its exact value. Click any card to open its converter.
About Energy & Work Converter
The Energy & Work Converter converts between 7 different units, including Joule, Kilojoule, Calorie, Kilocalorie (kcal), Watt-hour (Wh). The base unit is the Joule, and every other unit on this page is defined as an exact multiple of it. Type any value into the calculator above to convert instantly — free, unlimited, no signup and nothing to install.
Common equivalents: 1 Joule = 0.001 Kilojoule, 0.239006 Calorie, 0.000239006 Kilocalorie (kcal).
Scale of this category: the smallest unit is the Joule (J) and the largest is the Kilowatt-hour (kWh) (kWh).
Last updated: 2026-09-15
Energy & Work conversion factors
| Unit | Symbol | Value in Joule |
|---|---|---|
| Joule | J | 1 J = 1 J |
| Kilojoule | kJ | 1 kJ = 1000 J |
| Calorie | cal | 1 cal = 4.184 J |
| Kilocalorie (kcal) | kcal | 1 kcal = 4184 J |
| Watt-hour (Wh) | Wh | 1 Wh = 3600 J |
| Kilowatt-hour (kWh) | kWh | 1 kWh = 3600000 J |
| BTU | BTU | 1 BTU = 1055.06 J |
Worked Examples
See exactly how the conversion works with real numbers, step by step.
How much is 1 Calorie in Watt-hour (Wh)?
- Multiply 1 by the conversion factor 0.00116222
- 1 Calorie = 0.00116222 Watt-hour (Wh)
How much is 100 Calorie in Watt-hour (Wh)?
- Multiply 100 by the conversion factor 0.00116222
- 100 Calorie = 0.116222 Watt-hour (Wh)
How much is 1000 Calorie in Watt-hour (Wh)?
- Multiply 1000 by the conversion factor 0.00116222
- 1000 Calorie = 1.162222 Watt-hour (Wh)
Quick Conversion Reference Table
| Calorie (cal) | Watt-hour (Wh) (Wh) |
|---|---|
| 1 cal (Calorie) | 0.00116222 Wh (Watt-hour (Wh)) |
| 2 cal (Calorie) | 0.00232444 Wh (Watt-hour (Wh)) |
| 5 cal (Calorie) | 0.00581111 Wh (Watt-hour (Wh)) |
| 10 cal (Calorie) | 0.0116222 Wh (Watt-hour (Wh)) |
| 20 cal (Calorie) | 0.0232444 Wh (Watt-hour (Wh)) |
| 50 cal (Calorie) | 0.0581111 Wh (Watt-hour (Wh)) |
| 100 cal (Calorie) | 0.116222 Wh (Watt-hour (Wh)) |
| 500 cal (Calorie) | 0.581111 Wh (Watt-hour (Wh)) |
| 1000 cal (Calorie) | 1.162222 Wh (Watt-hour (Wh)) |
Popular Energy & Work Converter Conversions
Jump straight to the exact conversion you need — every pair has its own page.
Share this conversion
Grab a Pinterest-ready image (1000 × 1500) or pin this page directly.
How to Use This Converter
- Enter your value
Type any number into the input field above. The result updates instantly as you type — no button needed.
- Choose your units
Pick the source and target units from the dropdowns, or tap ⇄ to swap them around.
- Copy or explore
Copy the result with one tap, check the formula, or browse the worked examples and reference table below.
FAQ
How much is 1 Calorie in Watt-hour (Wh)?
1 Calorie = 0.00116222 Watt-hour (Wh).
How do I convert Calorie to Watt-hour (Wh)?
Enter your value in Calorie into the converter above and the result in Watt-hour (Wh) appears instantly. 1 cal equals 0.00116222 Wh — just multiply your value by 0.00116222.
What is the formula for Calorie to Watt-hour (Wh)?
The formula is: value in Watt-hour (Wh) = value in Calorie × 0.00116222. For example, 100 cal × 0.00116222 = 0.116222 Wh.
Is this Calorie to Watt-hour (Wh) converter free and accurate?
Yes. This Calorie to Watt-hour (Wh) converter is 100% free, uses the exact international conversion factor (0.00116222), and works on any device with no signup.
How do I convert Watt-hour (Wh) back to Calorie?
To convert back, divide by 0.00116222 (or multiply by 860.42065). You can also use our dedicated How Many Calorie in 1 Watt-hour (Wh)? page for instant results.
Do I need to download an app or sign up?
No. The converter runs entirely in your browser — nothing to install, no account, no fees. It even keeps working offline once the page has loaded.
Which Energy & Work units are supported?
This converter supports 7 units: Joule, Kilojoule, Calorie, Kilocalorie (kcal), Watt-hour (Wh), Kilowatt-hour (kWh), BTU.