Convert Calories to BTU

Convert calories to btu (cal to BTU) instantly. Free, accurate calories to btu calculator with conversion formula and chart.

From

To0.003965666831

1 cal = 0.003965666831 BTU

Conversion formula

1 calorie = 0.003965666831 btu

Multiply a value in calories by 0.003965666831 to get btu; divide by the same number to convert back.

Calories to BTU conversion table

Calories (cal)	BTU (BTU)
1 cal	0.00396567 BTU
2 cal	0.00793133 BTU
5 cal	0.0198283 BTU
10 cal	0.0396567 BTU
25 cal	0.0991417 BTU
50 cal	0.198283 BTU
100 cal	0.396567 BTU
500 cal	1.98283 BTU
1,000 cal	3.96567 BTU

For example, 12 calories is 0.047588 btu.
A value of 75 calories converts to 0.297425 btu.
Going the other way, 1 btu is 252.164 calories.

More energy conversions

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About Calories to BTU

Easily convert calories (cal) to btu (BTU) with this free, instant calculator. Enter a value in calories to see the equivalent in btu right away — accurate and calculated in your browser.

How to use Calories to BTU

1
Enter the number of calories you want to convert.
2
The equivalent value in btu appears instantly.
3
Switch units anytime to convert in either direction.

How to convert Calories to BTU

Enter any value in calories (cal) and this calculator instantly shows the equivalent in btu (BTU) using the exact internationally agreed conversion factor — no rounding tricks, no ads in the way, and it works offline once the page is loaded.

Use the swap button to convert in the other direction (btu to calories), or switch to any other energy unit from the dropdown — the same page handles joules, kilojoules, calories, kilocalories, watt-hours, kilowatt-hours, btu, electronvolts.

Frequently Asked Questions

How do you convert calories to btu?

Enter your value in calories and the converter instantly shows the result in btu using the exact conversion factor.

Is the calories to btu converter free?

Yes — it's completely free, instant and requires no sign-up.

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