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Calorie Unit Converter (kcal ↔ kJ ↔ J) Calculator

Convert between calories (kcal), kilojoules (kJ), and joules (J).

Input Data

Value

Results

200
836.8
836,800
200 KCAL = 200 kcal = 836.8 kJ = 836800 J.

At a glance:Convert between calories (kcal), kilojoules (kJ), and joules (J).

Formula

1 kcal = 4.184 kJ = 4184 J.

How to Use

  1. Pick the source unit (kcal / kJ / J).
  2. Enter the value.
  3. The calculator returns the equivalent in all three units.

FAQ

Large vs small calorie?

The kcal on nutrition labels is a large calorie (Cal); 1 large calorie = 1000 small calories.

How is it different from meal-calories?

meal-calories derives kcal from macros; this does unit conversion.

Precision?

kcal/kJ to 2 decimals, J as integer.

Related Tools

References

Content review: Calculatorism Science Team. Results are for reference only; please refer to the relevant authorities for the official figures.

Found a problem with the results?

If this calculator's result is wrong, or you have any question about the calculation logic, please let us know. You are viewing:Calorie Unit Converter (kcal ↔ kJ ↔ J) Calculator（/food/kcal-to-joule）。