Skip to content

British Thermal Units to Kilocalories Converter

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

BTU

Kilocalories

6.8085

kcal

27 BTU = 6.8085 kcal

kcal = BTU × 0.252165

British Thermal Units to Kilocalories: 1 BTU equals 0.252165 kcal. To convert british thermal units to kilocalories, multiply by 0.252165 (kcal = BTU × 0.252165). For example, 10 BTU = 2.521654 kcal.

How to Convert British Thermal Units to Kilocalories

To convert from british thermal units to kilocalories, multiply the value by 0.252165. The conversion is linear, meaning doubling the input doubles the output.

Conversion Formula

  • British Thermal Units to Kilocalories: kcal = BTU × 0.252165
  • Kilocalories to British Thermal Units: BTU = kcal ÷ 0.252165

British Thermal Units to Kilocalories Conversion Chart

British Thermal Units (BTU)Kilocalories (kcal)
0.10.025217
0.250.063041
0.50.126083
10.252165
20.504331
30.756496
51.260827
102.521654
205.043308
256.304135
5012.608269
10025.216539
25063.041348
1000252.16539

Understanding the Units

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.

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.

Real-World Reference Points

Item British Thermal Units (BTU) Kilocalories (kcal)
Slice of bread317.252180
Banana (medium)416.3934105
Daily intake (adult)7931.30252000

Related

Joules to Calories Converter

Convert joules to calories and calories to joules instantly with formula and common values.

Calories to Joules Converter

Convert calories to joules and joules to calories with precise conversion factor.

BTU to Joules Converter

Convert British Thermal Units to joules and joules to BTU for heating and energy calculations.

Kilowatt Hours to Joules Converter

Convert kilowatt hours to joules and joules to kWh for electricity and energy calculations.

Calories to Kilocalories Converter

Convert calories to kilocalories and kilocalories to calories for nutrition and science.

Joules to Kilojoules Converter

Convert joules to kilojoules and kilojoules to joules with simple metric prefix conversion.

FAQ

How do I convert british thermal units to kilocalories?

Multiply by 0.252165. For example, 27 BTU × 0.252165 = 6.8085 kcal.

What is the formula for british thermal units to kilocalories?

The formula is: kcal = BTU × 0.252165.

How many kilocalories are in one british thermal unit?

One british thermal unit equals 0.2522 kilocalories.

How many kilocalories are in 1 british thermal unit?

1 BTU equals 0.252165 kcal.

How do you convert british thermal units to kilocalories?

Multiply the british thermal unit value by 0.252165. Formula: kcal = BTU × 0.252165.

How many kilocalories are in 5 british thermal units?

5 BTU = 1.260827 kcal.

How do you convert kilocalories back to british thermal units?

Use the inverse formula: BTU = kcal ÷ 0.252165. For example, 1 kcal = 3.965651 BTU.

What is the difference between British Thermal Unit and Kilocalory?

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