Energy / kcal → cal
Convert Thermochemical kilocalories to Thermochemical calories
Convert work, heat, and stored energy using joules as the base. Convert Thermochemical kilocalories (kcal) to Thermochemical calories (cal). Find the formula, worked examples, unit definitions, and practical guidance below.
Reverse: Thermochemical calories to Thermochemical kilocalories →
How to convert thermochemical kilocalories to thermochemical calories
Calories use the thermochemical definition. Btu use the International Table definition. Food Calories are kilocalories, not single calories.
Use x for the value in kcal, b for the intermediate value in J, and y for the result in cal.
cal = kcal × 4184 ÷ 4.184
Worked examples
10 kcal ≈ 10000 cal
Step 1: (10 × 4184) ≈ 41840 J.
Step 2: 41840 ÷ 4.184 ≈ 10000 cal.20 kcal ≈ 20000 cal
Step 1: (20 × 4184) ≈ 83680 J.
Step 2: 83680 ÷ 4.184 ≈ 20000 cal.
Results are rounded to 12 significant digits. Converting units does not increase the precision of the original measurement. Very large or small values outside JavaScript’s finite numeric range are rejected.
About Thermochemical kilocalories
Thermochemical kilocalories (kcal) measures energy under the conventions above. The base value in J is (x × 4184), where x is the numerical value in kcal. Factors shown here are rounded for display; calculations use the stored factor.
About Thermochemical calories
Thermochemical calories (cal) measures energy under the conventions above. The base value in J is (x × 4.184), where x is the numerical value in cal. Factors shown here are rounded for display; calculations use the stored factor.
Definitions and sources
Carry the same physical assumptions into subsequent physics calculations.
Thermochemical kilocalories to thermochemical calories reference table
| Thermochemical kilocalories (kcal) | Thermochemical calories (cal) |
|---|---|
| 1 | 1000 |
| 5 | 5000 |
| 10 | 10000 |
| 25 | 25000 |
| 50 | 50000 |
| 100 | 100000 |
| 1000 | 1000000 |
Browse every energy conversion →