1 kilocalorie to joules
1 kcal = 4,184 J. Change the amount below, or read the formula and the reference table further down.
1 kilocalorie equals
joules
1 kcal = 4,184 J
The formula
Kilocalories and joules both measure energy from the same zero, so a single multiplier does the job.
J = kcal × 4,184
Going the other way? Convert joules to kilocalories.
Kilocalories to joules table
Values either side of 1 kcal.
| Kilocalories (kcal) | Joules (J) |
|---|---|
| -4 | -16,736 |
| -3.5 | -14,644 |
| -3 | -12,552 |
| -2.5 | -10,460 |
| -2 | -8,368 |
| -1.5 | -6,276 |
| -1 | -4,184 |
| -0.5 | -2,092 |
| 0 | 0 |
| 0.5 | 2,092 |
| 1 | 4,184 |
| 1.5 | 6,276 |
| 2 | 8,368 |
| 2.5 | 10,460 |
| 3 | 12,552 |
| 3.5 | 14,644 |
| 4 | 16,736 |
| 4.5 | 18,828 |
| 5 | 20,920 |
| 5.5 | 23,012 |
| 6 | 25,104 |
Questions people ask
- How many joules are in a kilocalorie?
- One kilocalorie equals 4,184 joules.
- How do I convert kilocalories to joules by hand?
- Multiply the number of kilocalories by 4,184. For a rough check, 4,184 is close enough for most everyday use.
- What is 1 kilocalorie in joules?
- 1 kilocalorie is 4,184 joules.
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