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Unit Converter

British Thermal Unit (BTU) to Calorie (Thermochemical)

1 BTU = 252.1644 cal
Swap: Calorie (Thermochemical) to British Thermal Unit (BTU)⇄

1 British Thermal Unit (BTU) (BTU) is equal to 252.1644 Calorie (Thermochemical) (cal).To convert from british thermal unit (btu) into calorie (thermochemical), calculate using the recognized factor equation: 1 × 252.1644 = 252.1644 cal. Enter any value into the calculator below for automatic multi-unit calculations across the entire system.

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How to Convert British Thermal Unit (BTU) to Calorie (Thermochemical)

Exact Formula

To convert from British Thermal Unit (BTU) (BTU) to Calorie (Thermochemical) (cal), apply the standard mathematical equation:

Value in cal = Value in BTU × (252.1644)
Example: 1 × 252.1644 = 252.1644 cal

1 British Thermal Unit (BTU) (BTU) is equal to exactly 252.1644 Calorie (Thermochemical) (cal).

Reverse conversion: 1 cal = 0.003966 BTU.

British Thermal Unit (BTU) to Calorie (Thermochemical) Conversion Table

Quick lookup for standard increments from 1 to 100 BTU

Reference Table
British Thermal Unit (BTU) (BTU)Calorie (Thermochemical) (cal)Quick Copy
1 BTU252.1644 cal
2 BTU504.3288 cal
3 BTU756.4932 cal
5 BTU1,260.822 cal
10 BTU2,521.644 cal
15 BTU3,782.466 cal
20 BTU5,043.288 cal
25 BTU6,304.11 cal
50 BTU12,608.22 cal
75 BTU18,912.33 cal
100 BTU25,216.44 cal

Related Energy & Work Conversions

Quick jumps from British Thermal Unit (BTU) to other popular energy & work units

Cluster Links
British Thermal Unit (BTU) to Joule1 BTU = 1,055.0558 JBritish Thermal Unit (BTU) to Kilojoule1 BTU = 1.0551 kJBritish Thermal Unit (BTU) to Kilocalorie (Food Calorie)1 BTU = 0.2522 kcalBritish Thermal Unit (BTU) to Kilowatt-hour1 BTU = 0.0003 kWh

Frequently Asked Questions

Common queries regarding British Thermal Unit (BTU) to Calorie (Thermochemical) calculation formulas

How many calorie (thermochemical) are in 1 british thermal unit (btu)?

There are exactly 252.1644 calorie (thermochemical) (cal) in 1 british thermal unit (btu) (BTU).

What is the formula to convert from British Thermal Unit (BTU) to Calorie (Thermochemical)?

To convert British Thermal Unit (BTU) to Calorie (Thermochemical): Value in cal = Value in BTU × (252.1644). 1 British Thermal Unit (BTU) (BTU) is equal to exactly 252.1644 Calorie (Thermochemical) (cal).

How do you convert Calorie (Thermochemical) back into British Thermal Unit (BTU)?

To convert in reverse from Calorie (Thermochemical) to British Thermal Unit (BTU), 1 cal equals approximately 0.003966 BTU.