Calories to Btu converter

cal to BTU — 1 kcal = 4,184 J

Convert Calories to all units

J Joules
kJ Kilojoules
kcal Kilocalories
Wh Watt Hours
kWh Kilowatt Hours
BTU Btu
eV Electronvolts
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Conversion Formula

Calories to Btu: 1 kcal = 4,184 J

Example: To convert 500 kcal to joules: 500 × 4,184 = 2,092,000 J

Quick Reference: Calories to Btu

CaloriesBtu
1 cal0.003966 BTU
5 cal0.019828 BTU
10 cal0.039657 BTU
25 cal0.099141 BTU
50 cal0.198283 BTU
100 cal0.396565 BTU
500 cal1.9828 BTU
1,000 cal3.9657 BTU

Frequently Asked Questions

How do I convert Calories to Btu?

Multiply your calories value by the conversion factor. To convert 500 kcal to joules: 500 × 4,184 = 2,092,000 J. You can also use the converter above for instant results.

What is cal in BTU?

1 cal equals 0.003966 BTU. This is based on the standard conversion factor: 1 kcal = 4,184 J.

Is this converter accurate?

Yes. ConvertFast uses precise conversion factors computed client-side in your browser. Results are accurate to 6 significant digits, which covers all practical use cases.