British thermal unit to calorie
Live British thermal unit (BTU) to calorie (cal) converter. Plus a 10-value reference table and FAQs.
Conversion table
Ten sample values from British thermal unit to calorie. Use the converter above for arbitrary values.
| British thermal unit (BTU) | → | calorie (cal) |
|---|---|---|
| 0.001 BTU | → | 0.252164 cal |
| 0.01 BTU | → | 2.521644 cal |
| 0.1 BTU | → | 25.21644 cal |
| 0.5 BTU | → | 126.0822 cal |
| 1 BTU | → | 252.164401 cal |
| 2 BTU | → | 504.328801 cal |
| 5 BTU | → | 1,260.822004 cal |
| 10 BTU | → | 2,521.644007 cal |
| 100 BTU | → | 25,216.440072 cal |
| 1,000 BTU | → | 252,164.400722 cal |
About the British thermal unit
≈ 1055 J. HVAC in the US.
About the calorie
4.184 J. The energy to heat 1 g water by 1 °C.
How British thermal unit to calorie conversion works
Both units belong to Energy. Unitbox first expresses the input in the category reference unit (J), then expresses that same quantity in calorie.
The right unit depends on the convention used by your industry, country, instrument, or source document.
Unit definitions and conversion factors are maintained in the Unitbox methodology. Last reviewed with the current conversion dataset.
Frequently asked questions
Frequently Asked Questions
How do I convert British thermal unit to calorie?
Multiply the British thermal unit value by 252.164401 to get it in calorie. For example, 10 BTU = 2,521.644 cal.
What is 1 BTU in cal?
1 BTU = 252.164401 cal.
What is 100 BTU in cal?
100 BTU = 25,216.4401 cal.
What is the formula?
Linear: multiply by 252.164401 (the unit factor ratio).
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