NiftyRecipe Online energy conversion
kWh/MJ 3.6 BTU/kJ 1.055056 MJ/cal 239005.736138 kWh/BTU 3412.141633 MJ/kWh 0.277778 kWh/kJ 3600
cal / kcal

813 calories in kilocalorie

0.813 kilocalorie

1 cal = 0.001 kcal · factor

Swap units or open the reverse direction if you need kilocalorie back to calorie (about 1000 calorie per kilocalorie).

Enter a value and click Calculate - opens the page with the new result

Formula: calorie to kilocalorie

kcal = cal × 0.001 (1 CAL = 0.001 KCAL)

Reference values: calorie → kilocalorie
cal kcal
1 cal 0.001 kcal
100 cal 0.1 kcal
200 cal 0.2 kcal
500 cal 0.5 kcal
1000 cal 1 kcal
2000 cal 2 kcal
FAQ for cal → kcal
Why do labels show both kcal and kJ?

Many regions require both. Roughly 1 kcal = 4.184 kJ. Use the calculator for any amount.

Is a food “Calorie” the same as a kilocalorie?

Yes. On labels, Calorie almost always means kilocalorie (kcal).

Manual conversion?

kcal = cal × 0.001 (1 CAL = 0.001 KCAL)

Reverse conversion?

1 kilocalorie ≈ 1000 calorie. Swap units in the form or use the reverse link.

How much is 813 calories on a food label in kilocalorie?

0.813 kilocalorie. Factor 1 calorie = 0.001 kilocalorie.

813 calories in kilocalorie

813 calories is 0.813 kilocalorie using the standard food-energy factor on NiftyRecipe.

Package labels, recipe macros and fitness apps often jump between kilocalories and smaller calorie units (or kilojoules). Here the ratio stays constant: 1 calorie = 0.001 kilocalorie, so 813 calories always maps to 0.813 kilocalorie until you change the input. The reverse figure is 1 kilocalorie ≈ 1000 calorie.

Use the field above to try another portion size, scale a recipe, or match two apps that print different units. Everything on this page stays inside nutrition-style energy units-no length, temperature or other measures mixed in.