calories to BTU

Free online calories to BTU converter, type a value and get the result instantly. No signup, works offline in your browser.

—

All calculations run locally in your browser, nothing is uploaded.

Conversion formula

1 cal = 0.003966 BTU

How to convert calories to BTU step by step

  1. Write down the value you want to convert in calories.
  2. Multiply it by the conversion factor: 0.003966 (because 1 cal = 0.003966 BTU).
  3. The result is your value in BTU. Example: 10 cal × 0.003966 = 0.039657 BTU.

Tip: to go the other way, divide by the factor, or use the BTU to calories converter.

calories to BTU conversion table

calories (cal)BTU (BTU)
0.1 cal0.000397 BTU
0.25 cal0.000991 BTU
0.5 cal0.001983 BTU
1 cal0.003966 BTU
2 cal0.007931 BTU
3 cal0.011897 BTU
4 cal0.015863 BTU
5 cal0.019828 BTU
6 cal0.023794 BTU
8 cal0.031725 BTU
10 cal0.039657 BTU
15 cal0.059485 BTU
20 cal0.079313 BTU
25 cal0.099142 BTU
30 cal0.11897 BTU
40 cal0.158627 BTU
50 cal0.198283 BTU
60 cal0.23794 BTU
75 cal0.297425 BTU
100 cal0.396567 BTU
120 cal0.47588 BTU
122 cal0.483811 BTU
146 cal0.578987 BTU
150 cal0.59485 BTU
190 cal0.753477 BTU
200 cal0.793133 BTU
250 cal0.991417 BTU
300 cal1.1897 BTU
400 cal1.586267 BTU
500 cal1.982833 BTU
600 cal2.3794 BTU
750 cal2.97425 BTU
800 cal3.172533 BTU
1000 cal3.965667 BTU
1500 cal5.9485 BTU
1810 cal7.177857 BTU
1930 cal7.653737 BTU
2000 cal7.931334 BTU
2500 cal9.914167 BTU
3000 cal11.897 BTU
4000 cal15.862667 BTU
5000 cal19.828334 BTU
7500 cal29.742501 BTU
10000 cal39.656668 BTU
10500 cal41.639502 BTU

Related converters

Joules to kilojoulesJoules to caloriesJoules to kilocaloriesJoules to watt-hoursJoules to kilowatt-hoursJoules to electronvoltsJoules to BTUJoules to foot-poundsJoules to refrigeration ton-hoursKilojoules to joulesKilojoules to caloriesKilojoules to kilocaloriesKilojoules to watt-hoursKilojoules to kilowatt-hoursKilojoules to electronvoltsKilojoules to BTUKilojoules to foot-poundsKilojoules to refrigeration ton-hoursCalories to joulesCalories to kilojoulesCalories to kilocaloriesCalories to watt-hoursCalories to kilowatt-hoursCalories to electronvolts

FAQ

How do I convert calories to BTU?

Type a value in calories in the converter above, the equivalent in BTU is calculated instantly. 1 cal equals 0.003966 BTU.

What is the formula to convert calories to BTU?

Multiply the value in calories by 0.003966 to get the value in BTU.

How many BTU are in 1 calories?

There are 0.003966 BTU in 1 cal.

How do I convert BTU back to calories?

Divide the value in BTU by 0.003966, or use the swap button (⇄) in the converter above.

What does cal stand for?

cal is the standard abbreviation for calories. E.g. 1 cal = 0.003966 BTU.