At One Place

Calories to kilocalories

1 calorie in kilocalories
1 cal = 0.001 kcal
kcal = cal × 0.001

To convert calories to kilocalories, multiply by 0.001. The table below gives the values people look up most often, and the converter works for any number.

Calories to kilocalories table

Common calorie values converted to kilocalories.
Calories Kilocalories
1 cal 0.001
2 cal 0.002
3 cal 0.003
4 cal 0.004
5 cal 0.005
10 cal 0.01
15 cal 0.015
20 cal 0.02
25 cal 0.025
30 cal 0.03
40 cal 0.04
50 cal 0.05
75 cal 0.075
100 cal 0.1
250 cal 0.25
500 cal 0.5
1,000 cal 1

How the conversion works

The relationship is kcal = cal × 0.001. Both units measure energy, so the conversion is a fixed factor that never changes.

Calorie: Thermochemical (small) calorie.

Kilocalorie: The "calorie" on food labels.

Common questions

How many kilocalories are in one calorie?
One calorie equals 0.001 kilocalories. kcal = cal × 0.001.
How do you convert calories to kilocalories?
Use kcal = cal × 0.001. So 10 cal is 0.01 kcal.
How many calories are in one kilocalorie?
One kilocalorie equals 1,000 calories, which is the reverse of the conversion above.
Is there more than one kind of calorie?
Thermochemical (small) calorie. The "calorie" on food labels.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked