ENERGY CONVERSION
Calorie (thermochemical) to BTU (IT).
Convert calorie (thermochemical) (cal) to btu (it) (BTU), with the math explained.
1 cal = 0.003965666831 BTU
THE MATH, MADE SIMPLE
How to convert calorie (thermochemical) to btu (it)
Multiply your calorie (thermochemical) value by 0.00396566683139 to get the equivalent in btu (it). Both units are normalized through the joule.
BTU = cal × 0.00396566683110 cal = 0.0396566683139 BTU
Result rounded to 12 significant digits. Change the precision in the calculator to suit your task.QUICK REFERENCE
cal to BTU conversion table
| Calorie (thermochemical) (cal) | BTU (IT) (BTU) |
|---|---|
| 1 cal | 0.00396566683139 BTU |
| 2 cal | 0.00793133366278 BTU |
| 5 cal | 0.019828334157 BTU |
| 10 cal | 0.0396566683139 BTU |
| 20 cal | 0.0793133366278 BTU |
| 50 cal | 0.19828334157 BTU |
| 100 cal | 0.396566683139 BTU |
| 500 cal | 1.9828334157 BTU |
| 1,000 cal | 3.96566683139 BTU |
About the calorie (thermochemical)
The calorie (thermochemical) (cal) is a unit of energy. One calorie (thermochemical) equals 4.184 joule (base unit) in this calculator.
All calorie (thermochemical) conversionsAbout the btu (it)
The btu (it) (BTU) is a unit of energy. One btu (it) equals 1,055.05585262 joule (base unit) in this calculator.
All btu (it) conversionsCommon questions
What is 1 cal in BTU?
One calorie (thermochemical) equals 0.00396566683139 BTU. Use the formula above for other values.
Why might another calculator show a different last digit?
Calculators may round at different stages or use different unit conventions. We keep full JavaScript numeric precision during calculation and round only for display. Choose up to 15 significant digits. Check US versus UK units and the notes for this category.
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