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Convert Kilocalories to Calories

One kilocalorie equals 1,000 calories. Type any value to convert kilocalories to calories instantly — with a full reference table below.

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Convert Kilocalories to Calories

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Formula

How to convert Kilocalories to Calories

To convert kilocalories to calories, multiply by 1,000. One kilocalorie equals 1,000 cal, and one calorie equals 0.001 kcal.

  1. Take the value in kilocalories — for example 7.5 kcal.
  2. Multiply by 1,000 (the number of calories in one kilocalorie).
  3. 7.5 × 1,000 = 7,500 cal.

Shortcut: the factor is a power of ten, so just move the decimal point 3 places to the right.

Kilocalories to Calories conversion table

KilocaloriesCalories
1 kcal1,000 cal
2 kcal2,000 cal
5 kcal5,000 cal
10 kcal10,000 cal
20 kcal20,000 cal
50 kcal50,000 cal
100 kcal100,000 cal
200 kcal200,000 cal
500 kcal500,000 cal
1,000 kcal1,000,000 cal
2,000 kcal2,000,000 cal
CaloriesKilocalories
1 cal0.001 kcal
2 cal0.002 kcal
5 cal0.005 kcal
10 cal0.01 kcal
20 cal0.02 kcal
50 cal0.05 kcal
100 cal0.1 kcal
200 cal0.2 kcal
500 cal0.5 kcal
1,000 cal1 kcal
2,000 cal2 kcal

About converting Kilocalories to Calories

Kilocalories (kcal) and Calories (cal) are both units of energy. The exact factor is 1 kcal = 1,000 cal, so multiply by 1,000 to go from kilocalories to calories (or divide to go back).

The conversion runs entirely in your browser. Need the reverse? Use the Calories to Kilocalories converter, or the full unit converter for every unit at once.

Real-world energy in kilocalories and calories

ExampleKilocaloriesCalories
One food Calorie (kcal)1 kcal1,000 cal
A 100 W bulb running for one hour86.04207 kcal86,042.07 cal
A smartphone battery (≈19 Wh)≈ 16.5631 kcal≈ 16,563.1 cal
One kilowatt-hour860.4207 kcal860,420.7 cal

“≈” marks typical values; the rest are defined or measured figures.

The units

Kilocalories (kcal)

1,000 calories, exactly 4,184 J — the 'Calorie' on food labels.

Used for: Nutrition and diets.

Calories (cal)

The thermochemical calorie: exactly 4.184 J — energy to warm 1 g of water by about 1 °C.

Used for: Chemistry. Food 'Calories' are kilocalories.

The thermochemical calorie is exactly 4.184 J and a kilowatt-hour is exactly 3.6 MJ, so these factors are exact.

Frequently asked questions

5 answers
How many calories are in one kilocalorie?
One kilocalorie equals 1,000 calories.
How do I convert kilocalories to calories?
Multiply the number of kilocalories by 1,000. For example, 10 kilocalories = 10,000 calories.
What is 5 kilocalories in calories?
5 kilocalories is 5,000 calories.
Is a kilocalorie bigger than a calorie?
Yes. One kilocalorie equals 1,000 calories, so it is 1,000 times larger.
How many calories is a smartphone battery?
A smartphone battery is about 16,563.1 calories (about 16.5631 kilocalories).