Convert calorie (cal) to BTU (BTU).
EnergyOpen
BTU to Calorie Converter (BTU to cal)
Convert BTU (BTU) to calorie (cal).Unit Converter · Energy
Quick answer
1 BTU is approximately equal to 252.1644 calories (cal). 1 calorie (cal) is approximately equal to 0.00396567 BTUs (BTU).
To convert BTU to cal, multiply the value in BTUs by 252.164400722. For example, 10 BTU = 2,521.64400722 cal, and 100 BTU = 25,216.4400722 cal.
Loading chart…
Quick reference — BTU to calorie
More in Energy
All Energy convertersConvert BTU (BTU) to joule (J).
EnergyOpenConvert BTU (BTU) to kilojoule (kJ).
EnergyOpenConvert BTU (BTU) to kilocalorie (kcal).
EnergyOpenConvert BTU (BTU) to kilowatt hour (kWh).
EnergyOpenConvert BTU (BTU) to electronvolt (eV).
EnergyOpenConvert BTU (BTU) to watt hour (Wh).
EnergyOpenConvert joule (J) to calorie (cal).
EnergyOpenConvert kilojoule (kJ) to calorie (cal).
EnergyOpen
How to convert BTUs to calories
How many calories are in a BTU? 1 BTU is about 252.1644 calories. This free BTU to cal converter and BTU to calorie calculator gives the answer instantly for any value.
To convert BTU (BTU) to calorie (cal), multiply the value in BTUs by 252.164400722.
cal = BTU × 252.164400722
- 1
Take the value in BTUs
For example, 25 BTU.
- 2
Multiply by 252.164400722
25 × 252.164400722.
- 3
Read the answer in calories
25 BTU = 6,304.11001804 cal.
BTU to Calorie conversion table
Common values from 1 to 1,000 BTUs converted to calories.
| BTU (BTU) | Calorie (cal) |
|---|---|
| 1 BTU | 252.16440072 cal |
| 2 BTU | 504.32880144 cal |
| 3 BTU | 756.49320217 cal |
| 4 BTU | 1,008.65760289 cal |
| 5 BTU | 1,260.82200361 cal |
| 6 BTU | 1,512.98640433 cal |
| 7 BTU | 1,765.15080505 cal |
| 8 BTU | 2,017.31520577 cal |
| 9 BTU | 2,269.4796065 cal |
| 10 BTU | 2,521.64400722 cal |
| 15 BTU | 3,782.46601083 cal |
| 20 BTU | 5,043.28801444 cal |
| 25 BTU | 6,304.11001804 cal |
| BTU (BTU) | Calorie (cal) |
|---|---|
| 30 BTU | 7,564.93202165 cal |
| 40 BTU | 10,086.5760289 cal |
| 50 BTU | 12,608.2200361 cal |
| 60 BTU | 15,129.8640433 cal |
| 70 BTU | 17,651.5080505 cal |
| 75 BTU | 18,912.3300541 cal |
| 80 BTU | 20,173.1520577 cal |
| 90 BTU | 22,694.796065 cal |
| 100 BTU | 25,216.4400722 cal |
| 250 BTU | 63,041.1001804 cal |
| 500 BTU | 1,26,082.200361 cal |
| 1,000 BTU | 2,52,164.400722 cal |
About BTUs and calories
BTU (BTU)
A British thermal unit (BTU) is about 1,055 joules. It is used to rate air conditioners and heaters.
Calorie (cal)
A calorie (cal) here is the thermochemical calorie, exactly 4.184 joules. Food "Calories" are kilocalories, a thousand times larger.
BTU to cal: common questions
- How many calories are in 1 BTU?
- 1 BTU is approximately equal to 252.1644 calories (cal). In short: 1 BTU ≈ 252.1644 cal.
- How do I convert BTUs to calories?
- To convert BTU to cal, multiply the value in BTUs by 252.164400722. For example, 5 BTU = 1,260.82200361 cal.
- How do I convert calories to BTUs?
- To convert cal to BTU, divide the value in calories by 252.164400722. Or open the Calorie to Btu converter, which does it for you.
- What is 10 BTU in cal, and what is 100 BTU?
- 10 BTU = 2,521.64400722 cal, and 100 BTU = 25,216.4400722 cal. The table above lists more values from 1 to 1,000.
- Is this BTU to cal converter accurate?
- Yes. It uses the exact conversion factor and shows results to as many as 8 decimal places, so you can rely on it for study, work and everyday measuring.
Customize this calculator
Pick a look, copy the code, and this Btu to Calorie calculator — with its inputs and results — runs on your own website.
Theme color
Match your brand's colors
Corner style
Sharp, soft or fully rounded
Widget width
Compact, standard or full width
Live preview
Full widthThe same inputs, result and chart as the calculator above, styled with your choices.
yoursite.com