ENERGY CONVERSION
BTU (IT) to Calorie (thermochemical).
Convert btu (it) (BTU) to calorie (thermochemical) (cal), with the math explained.
1 BTU = 252.1644007 cal
THE MATH, MADE SIMPLE
How to convert btu (it) to calorie (thermochemical)
Multiply your btu (it) value by 252.164400722 to get the equivalent in calorie (thermochemical). Both units are normalized through the joule.
cal = BTU × 252.164400710 BTU = 2,521.64400722 cal
Result rounded to 12 significant digits. Change the precision in the calculator to suit your task.QUICK REFERENCE
BTU to cal conversion table
| BTU (IT) (BTU) | Calorie (thermochemical) (cal) |
|---|---|
| 1 BTU | 252.164400722 cal |
| 2 BTU | 504.328801444 cal |
| 5 BTU | 1,260.82200361 cal |
| 10 BTU | 2,521.64400722 cal |
| 20 BTU | 5,043.28801444 cal |
| 50 BTU | 12,608.2200361 cal |
| 100 BTU | 25,216.4400722 cal |
| 500 BTU | 126,082.200361 cal |
| 1,000 BTU | 252,164.400722 cal |
About 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) conversionsAbout 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) conversionsCommon questions
What is 1 BTU in cal?
One btu (it) equals 252.164400722 cal. 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.
BROWSE BY UNIT