1 Btu to Calories (nutritional)

1 Btu ≈ 0.25216 Cal

Calculation: Cal = 1 Btu × 0.252164 ≈ 0.25216 Cal

Btu to Calorie (nutritional) Converter

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How to Convert Btu to Calorie (nutritional)

1 Btu = 0.252164 calories (nutritional)

Calorie (nutritional) = Btu × 0.252164

Example: 1 Btu × 0.252164 = 0.25216 Cal

Reverse Conversion

To convert calories (nutritional) back to Btu:

  • Remember, 1 calorie (nutritional) equals 3.96567 Btu.
  • To convert 0.25216 Cal to Btu, multiply 0.25216 x 3.96567, resulting in 1 Btu.

1 Btu is also equal to:

  • 1055.1 joule
  • 1.0551 kilojoule
  • 0.00029307 kilowatt hour
  • 0.29307 watt hour

Frequently Asked Questions

How much is 1 Btu in calories (nutritional)?

1 Btu equals 0.25216 calories (nutritional). This is calculated by multiplying 1 by the conversion factor 0.252164.

What does 1 Btu look like in calories (nutritional)?

1 Btu (0.25216 calories (nutritional)) is a small amount of heat — warming a spoonful of water.

How do you calculate 1 Btu to calories (nutritional)?

Multiply 1 by the conversion factor 0.252164. The calculation is 1 × 0.252164 = 0.25216 calories (nutritional). This factor is defined by international measurement standards.

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1 Btu = 0.252164 calories (nutritional)
1 Btu = 0.252164 calories (nutritional) — conversion chart

Nearby Conversions

2 Btu0.5043 calories (nutritional) 3 Btu0.7565 calories (nutritional) 4 Btu1.009 calories (nutritional) 5 Btu1.261 calories (nutritional) 6 Btu1.513 calories (nutritional) 7 Btu1.765 calories (nutritional) 8 Btu2.017 calories (nutritional) 9 Btu2.269 calories (nutritional) 10 Btu2.522 calories (nutritional) 11 Btu2.774 calories (nutritional)

For general conversions between Btu and calories (nutritional), see the Btu to calories (nutritional) converter.

Also convert Btu to:

Conversion factors verified against NIST, BIPM, ISO 80000-4 1 cal_IT = 4.1868 J by definition (BIPM/ITS-90). Last reviewed: April 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.