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Kilocalories to British Thermal Units Converter

Convert kilocalories to british thermal units and back instantly with formula and common values.

kcal

British Thermal Units

107.0726

BTU

27 kcal = 107.0726 BTU

BTU = kcal × 3.96565

Kilocalories to British Thermal Units: 1 kcal equals 3.965651 BTU. To convert kilocalories to british thermal units, multiply by 3.965651 (BTU = kcal × 3.96565). For example, 10 kcal = 39.656512 BTU.

How to Convert Kilocalories to British Thermal Units

To convert from kilocalories to british thermal units, multiply the value by 3.965651. The conversion is linear, meaning doubling the input doubles the output.

Conversion Formula

  • Kilocalories to British Thermal Units: BTU = kcal × 3.96565
  • British Thermal Units to Kilocalories: kcal = BTU ÷ 3.96565

Kilocalories to British Thermal Units Conversion Chart

Kilocalories (kcal)British Thermal Units (BTU)
0.10.396565
0.250.991413
0.51.982826
13.965651
27.931302
311.896954
519.828256
1039.656512
2079.313024
2599.14128
50198.28256
100396.56512
250991.4128
10003965.6512

Understanding the Units

What is a Kilocalorie?

A kilocalorie (kcal) equals 1,000 small calories, or 4,184 joules. In nutrition, the food "Calorie" (capital C) refers to the kilocalorie.

Common contexts: nutrition (US), metabolism, food labeling.

What is a British Thermal Unit?

A British thermal unit (BTU) equals approximately 1,055.06 joules — the energy needed to raise one pound of water by one degree Fahrenheit.

Common contexts: HVAC, natural gas (US), heating systems.

Real-World Reference Points

Item Kilocalories (kcal) British Thermal Units (BTU)
Slice of bread80317.2521
Banana (medium)105416.3934
Daily intake (adult)20007931.3024

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FAQ

How do I convert kilocalories to british thermal units?

Multiply by 3.96565. For example, 27 kcal × 3.96565 = 107.0726 BTU.

What is the formula for kilocalories to british thermal units?

The formula is: BTU = kcal × 3.96565.

How many british thermal units are in one kilocalorie?

One kilocalorie equals 3.9657 british thermal units.

How many british thermal units are in 1 kilocalory?

1 kcal equals 3.965651 BTU.

How do you convert kilocalories to british thermal units?

Multiply the kilocalory value by 3.965651. Formula: BTU = kcal × 3.96565.

How many british thermal units are in 5 kilocalories?

5 kcal = 19.828256 BTU.

How do you convert british thermal units back to kilocalories?

Use the inverse formula: kcal = BTU ÷ 3.96565. For example, 1 BTU = 0.252165 kcal.

What is the difference between Kilocalory and British Thermal Unit?

A kilocalorie (kcal) equals 1,000 small calories, or 4,184 joules. In nutrition, the food "Calorie" (capital C) refers to the kilocalorie. A British thermal unit (BTU) equals approximately 1,055.06 joules — the energy needed to raise one pound of water by one degree Fahrenheit.