How do I convert BTU (IT) to Kilocalorie (kcal)?

1 btu equals 0.252164 kcal using SI-based conversion and precise factors.

What is the formula to convert BTU (IT) to Kilocalorie (kcal)?

This is a linear unit conversion using a constant factor between units.

Yes, it uses exact definitions or standardized constants (e.g., 1 in = 25.4 mm).

Use the shareable URL pattern: /convert/btu-to-kcal/1

Category: Energy

Value From To Precision

0.252164 kcal

1 btu = 0.252164 kcal

High-precision rounding: 6 decimals

We convert by pivoting through the SI base unit for Energy and applying exact factors where applicable.

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Energy is capacity to do work; joules, calories, Wh and BTU are common.

British thermal unit (BTU)

≈ 1,055.06 J (IT).

History: Steam age heat unit; HVAC standard.

Kilocalorie (kcal)

Food ‘Calorie’ (capital C) ≈ 4,184 J.

History: Nutrition labeling standard.