cal → kcal converter

Convert calories to kilocalories (Energy)

1 cal = 0.001 kcal · 1 kcal = 1000 cal

Common values: 10 cal 50 cal 100 cal 500 cal 1000 cal

500 cal = 0.5 kcal

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Calories to kilocalories Conversion

1 calories (cal) is equal to 0.001 kilocalories (kcal).

1 cal = 0.001 kcal

or

1 kcal = 1000 cal

Formula

To convert a energy from calories (cal) to kilocalories (kcal), divide the energy in calories by 1000

e(kcal) = e(cal) / 1000

Examples:

Convert 500 calories to kilocalories:

e(kcal) = 500cal / 1000 = 0.5 kcal

Conversion table

Calories (cal) Kilocalories (kcal)
1 cal 0.001 kcal
2 cal 0.002 kcal
3 cal 0.003 kcal
5 cal 0.005 kcal
10 cal 0.01 kcal
20 cal 0.02 kcal
25 cal 0.025 kcal
50 cal 0.05 kcal
100 cal 0.1 kcal
250 cal 0.25 kcal
500 cal 0.5 kcal
1000 cal 1 kcal
Kilocalories (kcal) Calories (cal)
1 kcal 1000 cal
2 kcal 2000 cal
3 kcal 3000 cal
5 kcal 5000 cal
10 kcal 10000 cal
20 kcal 20000 cal
25 kcal 25000 cal
50 kcal 50000 cal
100 kcal 100000 cal
250 kcal 250000 cal
500 kcal 500000 cal
1000 kcal 1000000 cal

Frequently asked questions

How do I convert calories to kilocalories?

Divide the value in calories by 1000 to get the result in kilocalories. For example, 5 cal ÷ 1000 = 0.005 kcal.

How many kilocalories are in 1 calories?

1 calories (cal) is equal to 0.001 kilocalories (kcal).

How do I convert kilocalories back to calories?

Use the inverse operation: multiply the value in kilocalories by 1000 to get the result in calories.

How accurate is the calories to kilocalories conversion?

The converter multiplies by the conversion factor 1000 and rounds the result to 9 decimal places by default. You can increase or reduce the precision with the digits option on this page.

Sources

Conversion factors are based on internationally recognised standards:

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