Convert Calorie to BTU
0.003966
1 cal = 0.0039656512 BTU
Use the conversion factor 1 cal = 0.003965651243 BTU. To convert Calorie to BTU, multiply the input value by 0.003965651243.
Conversion Formula
BTU = cal × 0.00396565
Reverse: cal = BTU × 252.165
Conversion Examples
1 cal × 0.0039656512 =
0.0039656512 BTU
1 Calories = 0.0039656512 BTUs
5 cal × 0.0039656512 =
0.019828256 BTU
5 Calories = 0.019828256 BTUs
10 cal × 0.0039656512 =
0.039656512 BTU
10 Calories = 0.039656512 BTUs
25 cal × 0.0039656512 =
0.099141281 BTU
25 Calories = 0.099141281 BTUs
50 cal × 0.0039656512 =
0.19828256 BTU
50 Calories = 0.19828256 BTUs
100 cal × 0.0039656512 =
0.39656512 BTU
100 Calories = 0.39656512 BTUs
Calorie to BTU Table
cal =—BTU
| Calorie (cal) | BTU (BTU) | Fraction |
|---|---|---|
| 100 | 0.396565 | 25/64 |
| 200 | 0.79313 | 51/64 |
| 300 | 1.189695 | 1 3/16 |
| 400 | 1.58626 | 1 19/32 |
| 500 | 1.982826 | 1 63/64 |
| 600 | 2.379391 | 2 3/8 |
| 700 | 2.775956 | 2 25/32 |
| 800 | 3.172521 | 3 11/64 |
| 900 | 3.569086 | 3 9/16 |
| 1,000 | 3.965651 | 3 31/32 |
| 1,100 | 4.362216 | 4 23/64 |
| 1,200 | 4.758781 | 4 49/64 |
| 1,300 | 5.155347 | 5 5/32 |
| 1,400 | 5.551912 | 5 35/64 |
| 1,500 | 5.948477 | 5 61/64 |
| 1,600 | 6.345042 | 6 11/32 |
| 1,700 | 6.741607 | 6 47/64 |
| 1,800 | 7.138172 | 7 9/64 |
| 1,900 | 7.534737 | 7 17/32 |
| 2,000 | 7.931302 | 7 15/16 |
Unit Definitions
What is a Calorie (cal)?
Metric (SI)Worldwide
Calorie (cal) is one of the two units used in this conversion. Open its dedicated unit page for the reviewed definition and references.
Learn more about CalorieWhat is a BTU (BTU)?
ImperialUnited States
BTU (BTU) is one of the two units used in this conversion. Open its dedicated unit page for the reviewed definition and references.
Learn more about BTUFrequently Asked Questions
How do I convert Calorie to BTU?
Multiply the value in cal by 0.003965651243. The formula is BTU = cal × 0.003965651243.
How many BTU are in 1 Calorie?
One Calorie equals 0.003965651243 BTU.
What is 10000 cal in BTU?
10000 cal equals 39.65651243 BTU.
How do I convert BTU back to Calorie?
Use the reverse factor: 1 BTU = 252.165392 cal.