⚡ Energy converter

BTU to Kilocalorie Converter

Convert BTU (BTU) to kilocalories (kcal) instantly with the exact formula, a conversion table and chart.

BTU

Results

Kilocalories
0.252164400722 kcal
Same value in every unit

📊 BTU to Kilocalorie chart

BTU to Kilocalorie — plotted against btu (btu).

How to convert BTU to kilocalories

To convert BTU to kilocalories, multiply by 0.252164400722. Energy conversions connect nutrition, electricity bills, heating systems and physics.

kcal = BTU × 0.252164400722 BTU = kcal ÷ 0.252164400722
BTU to Kilocalorie conversion – BTU to kcal formula illustration
BTU (BTU) → Kilocalorie (kcal) at a glance.

BTU to Kilocalorie conversion table

BTU (BTU)Kilocalorie (kcal)
0.1 BTU0.0252164400722 kcal
0.5 BTU0.126082200361 kcal
1 BTU0.252164400722 kcal
2 BTU0.504328801444 kcal
3 BTU0.756493202165 kcal
4 BTU1.00865760289 kcal
5 BTU1.26082200361 kcal
10 BTU2.52164400722 kcal
20 BTU5.04328801444 kcal
25 BTU6.30411001804 kcal
50 BTU12.6082200361 kcal
100 BTU25.2164400722 kcal
500 BTU126.082200361 kcal
1,000 BTU252.164400722 kcal

About the units

BTU (BTU)

The International Table British thermal unit is about 1,055.06 joules, used for HVAC and heating.

Kilocalorie (kcal)

A kilocalorie (food Calorie) equals 1,000 small calories, or 4,184 joules.

How to use this converter

  1. Type the number of BTU (BTU) in the input box.
  2. The result in kilocalories appears instantly — no button needed.
  3. See the same value in every other energy unit just below.
  4. Use “Swap units” to convert kilocalories back to BTU.

Tips for better results

  • Double-check which system a unit belongs to (for example US vs UK gallons).
  • Use the swap button to convert in the opposite direction instantly.
  • Bookmark the conversions you use most — each pair has its own page.

Frequently asked questions

How many kilocalories are in one btu?

One btu equals 0.252164400722 kilocalories. 0.252164400722 is the exact factor used by this converter.

How do I convert BTU to kilocalories?

Multiply the value in BTU by 0.252164400722. To go the other way, multiply kilocalories by 3.96566683139.

What is 10 BTU in kcal?

10 BTU = 2.52164400722 kcal. Also, 5 BTU = 1.26082200361 kcal and 100 BTU = 25.2164400722 kcal.

What is the difference between a btu and a kilocalorie?

The International Table British thermal unit is about 1,055.06 joules, used for HVAC and heating. A kilocalorie (food Calorie) equals 1,000 small calories, or 4,184 joules.

Is this tool free and private?

Yes — the BTU to Kilocalorie is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.

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