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Btu to kcal converter

1 BTU equals 0.2521644 kilocalories (food calories). Conversions use kcal = Btu × 0.252164

Btu → 0.2521644 kcal

kcal = Btu × 0.252164

Converter

Worked examples

1 Btu = 0.2521644 kcal
2 Btu = 0.5043288 kcal
5 Btu = 1.260822 kcal
10 Btu = 2.521644 kcal
100 Btu = 25.21644 kcal

BTUs to kilocalories (food calories) conversion table

Btu	kcal	Arithmetic
1 Btu	0.2521644 kcal	× 0.252164
2 Btu	0.5043288 kcal	× 0.252164
3 Btu	0.7564932 kcal	× 0.252164
4 Btu	1.008658 kcal	× 0.252164
5 Btu	1.260822 kcal	× 0.252164
6 Btu	1.512986 kcal	× 0.252164
8 Btu	2.017315 kcal	× 0.252164
10 Btu	2.521644 kcal	× 0.252164
12 Btu	3.025973 kcal	× 0.252164
15 Btu	3.782466 kcal	× 0.252164
20 Btu	5.043288 kcal	× 0.252164
25 Btu	6.30411 kcal	× 0.252164
30 Btu	7.564932 kcal	× 0.252164
40 Btu	10.086576 kcal	× 0.252164
50 Btu	12.60822 kcal	× 0.252164
60 Btu	15.129864 kcal	× 0.252164
70 Btu	17.651508 kcal	× 0.252164
80 Btu	20.173152 kcal	× 0.252164
90 Btu	22.694796 kcal	× 0.252164
100 Btu	25.21644 kcal	× 0.252164

How to convert Btu to kcal

Take your value in BTUs.
Multiply by 0.252164
That is your answer in kilocalories (food calories) — no rounding needed until you choose a display precision.

kcal to Btu J to kcal kJ to kcal cal to kcal kcal to J kcal to kJ kcal to cal kcal to Wh kcal to kWh all energy units

Questions

How many kilocalories (food calories) in 1 BTU?

Exactly 0.2521644 kcal. The factor follows from the definitions of both units, not from a measurement, so it is exact.

How do I convert Btu to kcal?

Multiply the BTUs figure by 0.252164 — or use the converter above, which updates as you type.

Is Btu to kcal the same as kcal to Btu?

No — they are inverses. One Btu is 0.2521644 kcal, while one kcal is 3.965667 Btu.

What is 1 Btu in kcal?

1 Btu = 0.2521644 kcal (see the value page for the full arithmetic).