Energy Converter

Kilocalorie to Kilojoule
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Converting between kilocalories and kilojoules is essential in physics, nutrition, electrical engineering, and heating calculations. Energy units bridge different domains: joules in physics, calories in nutrition, kilowatt-hours in electricity, and BTUs in heating.

Also convert to: J kJ MJ cal Wh kWh BTU

21.27151 kcal = 88.999998 kj

21.27151 (twenty-one) kilocalorie(s) is equal to 88.999998 (eighty-eight) kilojoule(s)

What is kilocalorie?

The kilocalorie (kcal), often called a food Calorie (with capital C), equals 1,000 calories or 4,184 joules. It is the standard unit for measuring the energy content of food and beverages in nutrition.

What is kilojoule?

The kilojoule (kJ) equals 1,000 joules. It is used in nutrition labelling in many countries and for measuring the energy content of foods, chemical reactions, and industrial processes.

How to convert kcal to kj

To convert Kilocalorie to Kilojoule, multiply the value by 4.184.
21.27151 kcal × 4.184 = 88.999998 kj

Common Conversions

kcal kj (Kilojoule) Description
1 kcal 4.184 kJ 1 Kilocalorie(s) = 4.184 Kilojoule(s)
2 kcal 8.368 kJ 2 Kilocalorie(s) = 8.368 Kilojoule(s)
5 kcal 20.92 kJ 5 Kilocalorie(s) = 20.92 Kilojoule(s)
10 kcal 41.84 kJ 10 Kilocalorie(s) = 41.84 Kilojoule(s)
25 kcal 104.6 kJ 25 Kilocalorie(s) = 104.6 Kilojoule(s)
50 kcal 209.2 kJ 50 Kilocalorie(s) = 209.2 Kilojoule(s)
100 kcal 418.4 kJ 100 Kilocalorie(s) = 418.4 Kilojoule(s)
250 kcal 1046 kJ 250 Kilocalorie(s) = 1046 Kilojoule(s)
500 kcal 2092 kJ 500 Kilocalorie(s) = 2092 Kilojoule(s)
1000 kcal 4184 kJ 1000 Kilocalorie(s) = 4184 Kilojoule(s)
2500 kcal 10460 kJ 2500 Kilocalorie(s) = 10460 Kilojoule(s)
5000 kcal 20920 kJ 5000 Kilocalorie(s) = 20920 Kilojoule(s)
10000 kcal 41840 kJ 10000 Kilocalorie(s) = 41840 Kilojoule(s)

Convert Kilocalorie to other units

kcal Unit Description
21.27151 kcal 88999.99784 J Joule
21.27151 kcal 88.999998 kJ Kilojoule
21.27151 kcal 0.089 MJ Megajoule
21.27151 kcal 21271.51 cal Calorie
21.27151 kcal 24.722222 Wh Watt-hour
21.27151 kcal 0.024722 kWh Kilowatt-hour
21.27151 kcal 84.355722 BTU British thermal unit

More Kilojoule conversions

1 kcal 2 kcal 3 kcal 4 kcal 5 kcal 6 kcal 7 kcal 8 kcal 9 kcal 10 kcal 11 kcal 12 kcal 13 kcal 14 kcal 15 kcal 16 kcal 17 kcal 18 kcal 19 kcal 20 kcal 25 kcal 30 kcal 40 kcal 50 kcal 60 kcal 70 kcal 80 kcal 90 kcal 100 kcal 200 kcal 300 kcal 500 kcal 1000 kcal 2000 kcal 5000 kcal 10000 kcal

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