AccuUnit
Energy Converter

Convert Calorie (Gram) to BTU (British Thermal Unit).

Input the value of calories (g) below to convert instantly to btus with standard conversions, definitions, and equations.

Energy Converter
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BTU
Value in BTUs = Value in Calories (g) × 0.003966 Multiply the value in calories (g) by the conversion factor 0.003966.

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How to Convert Calories (g) to BTUs

To convert calorie (gram) to btu (british thermal unit), we use the official conversion formulas. Below is the mathematical formula, plain-English explanation, and a worked example.

calorie-to-btu-formula.py
# Mathematical Formula
Value in BTUs = Value in Calories (g) × 0.003966
# Worked Example (5 cal)
5 cal × 0.003966 = 0.0198 BTU
What is a Calorie (Gram)?

Calorie (Gram) (cal)

Energy required to raise the temperature of 1g of water by 1°C.

What is a BTU (British Thermal Unit)?

BTU (British Thermal Unit) (BTU)

Traditional unit of heat, energy required to raise the temperature of 1 pound of water by 1°F.

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

Calorie (Gram) (cal) BTU (British Thermal Unit) (BTU)
1 cal 0.00397 BTU
2 cal 0.00793 BTU
3 cal 0.0119 BTU
5 cal 0.01983 BTU
10 cal 0.03966 BTU
15 cal 0.05949 BTU
20 cal 0.07931 BTU
25 cal 0.09914 BTU
50 cal 0.19828 BTU
100 cal 0.39657 BTU
250 cal 0.99142 BTU
500 cal 1.98283 BTU
1000 cal 3.96567 BTU

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

BTU (British Thermal Unit) (BTU) Calorie (Gram) (cal)
1 BTU 252.1644 cal
2 BTU 504.3288 cal
3 BTU 756.4932 cal
5 BTU 1260.822 cal
10 BTU 2521.644 cal
15 BTU 3782.466 cal
20 BTU 5043.288 cal
25 BTU 6304.11 cal
50 BTU 12608.22 cal
100 BTU 25216.44001 cal
250 BTU 63041.10002 cal
500 BTU 126082.20005 cal
1000 BTU 252164.4001 cal
Questions

Frequently Asked Questions

How do I convert calories (g) to btus?

Multiply the value in calories (g) by the conversion factor 0.003966. For example, to convert 5 calories (g) to btus: 5 × 0.003966 = 0.0198 BTU.

What is the conversion factor from calorie (gram) to btu (british thermal unit)?

The conversion factor is 0.003966. One calorie (gram) is equal to 0.003966 btus.

What is the reverse conversion from btu (british thermal unit) to calorie (gram)?

To convert btus back to calories (g), multiply by 252.1644 (or divide the value by 0.003966). One btu (british thermal unit) is equal to 252.1644 calories (g).

How many Joules are in 1 Kilowatt-hour (kWh)?

There are exactly 3,600,000 Joules (or 3.6 Megajoules) in 1 kWh.

What is the difference between a calorie and a Calorie?

A lowercase calorie (cal) is a small metric unit (4.184 J). A capitalized Calorie (Cal) is a food calorie, which is actually a kilocalorie (1,000 small calories or 4,184 J).

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