100 BTU to calories
100 BTU = 25,216.44 cal. Change the amount below, or read the formula and the reference table further down.
100 BTU equals
calories
1 BTU = 252.16 cal
The formula
BTU and calories both measure energy from the same zero, so a single multiplier does the job.
cal = BTU × 252.16
Going the other way? Convert calories to BTU.
BTU to calories table
Values either side of 100 BTU.
| BTU (BTU) | Calories (cal) |
|---|---|
| 0 | 0 |
| 10 | 2,521.64 |
| 20 | 5,043.29 |
| 30 | 7,564.93 |
| 40 | 10,086.58 |
| 50 | 12,608.22 |
| 60 | 15,129.86 |
| 70 | 17,651.51 |
| 80 | 20,173.15 |
| 90 | 22,694.8 |
| 100 | 25,216.44 |
| 110 | 27,738.08 |
| 120 | 30,259.73 |
| 130 | 32,781.37 |
| 140 | 35,303.02 |
| 150 | 37,824.66 |
| 160 | 40,346.3 |
| 170 | 42,867.95 |
| 180 | 45,389.59 |
| 190 | 47,911.24 |
| 200 | 50,432.88 |
Questions people ask
- How many calories are in a BTU?
- One BTU equals 252.16 calories.
- How do I convert BTU to calories by hand?
- Multiply the number of BTU by 252.16. For a rough check, 252.16 is close enough for most everyday use.
- What is 100 BTU in calories?
- 100 BTU is 25,216.44 calories.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.