Convert calorie (nutritional / food calorie) to calorie (thermochemical) instantly. Type in either field — results update live.
Selected Cal values converted to cal (th) using the exact factor from this tool.
| Cal | cal (th) |
|---|---|
| 0.01 | 10 |
| 0.1 | 100 |
| 1 | 1,000 |
| 2 | 2,000 |
| 3 | 3,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 20 | 20,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 1,000 | 1,000,000 |
Exact conversion factors in both directions, plus a worked example.
1 Cal = 1000 cal (th)
1 cal (th) = 0.001 Cal
To convert calorie (nutritional / food calorie) to calorie (thermochemical), multiply by 1000.
To convert calorie (thermochemical) to calorie (nutritional / food calorie), multiply by 0.001.
Example: convert 10 Cal to cal (th)
10 × 1000 = 10000 cal (th)
Short background on the units used in this conversion.
The food Calorie (capital C) equals one kilocalorie — 4,184 joules in this converter (thermochemical kcal, matching nutrition labels).
Food Calories label packaged meals, diet apps, and nutrition facts panels worldwide.
The thermochemical calorie is exactly 4.184 joules — the heat needed to raise 1 g of water by 1°C (thermochemical definition).
Thermochemical calories appear in chemistry and physics; do not confuse with food Calories (kilocalories).
cal (th) = Cal × 1,000Cal = cal (th) × 0.001, using the same exact factors as this converter.Jump to any energy conversion starting from calorie (nutritional / food calorie) — including the reverse direction and every other unit in our dataset.