Convert calories to btu quickly and accurately using this free online converter
Used in nutrition labels, physics, and electricity consumption.
💡 Calories (kcal) are used in food; joules in science; kWh in electricity.
BTU = cal × 0.00396565
Example: 1 cal × 0.00396565 = 0.00396565 BTU
Use kcal for food; kWh for energy consumption; joules for science.
Common uses: nutrition, electricity bills, and scientific calculations.
How do I convert cal to BTU?
Multiply the value in Calories by 0.00396565. For example: 10 cal = 0.039657 BTU.
When should I use BTU instead of Calories?
Use kcal for food; kWh for energy consumption; joules for science.
Is this converter accurate?
Yes. We use internationally recognized conversion factors, updated to current standards.
| Calories (cal) | BTU (BTU) |
|---|---|
| 1 cal | 0.00396565 BTU |
| 10 cal | 0.039657 BTU |
| 50 cal | 0.198283 BTU |
| 100 cal | 0.396565 BTU |
| 250 cal | 0.991413 BTU |
| 500 cal | 1.9828 BTU |
| 1000 cal | 3.9657 BTU |
| 2000 cal | 7.9313 BTU |