Kilocalories to Kilojoules
Convert kilocalories (kcal) to kilojoules (kJ).


About this conversion

Convert joules (J), calories (cal), kilowatt-hours (kWh), BTU, and other energy units. Energy is the capacity to do work; the joule (J) is the SI unit (1 J = 1 N·m). Nutritional calories and electrical kWh use different reference definitions tied to joules.

This energy converter transforms values from Kilocalories (kcal) to Kilojoules (kJ). Results update instantly using the exact conversion factor.

The Kilocalories (kcal) is a unit of energy in the Energy category.

The Kilojoules (kJ) is a unit of energy in the Energy category.

Kilocalories to Kilojoules Formula

1 kcal × 4.184 = 4.184 kJ

How to convert Kilocalories to Kilojoules?

kJ = kcal × 4.184

To convert kcal to kJ, multiply the value in kcal by 4.184 (conversion factor). Example: 1 kcal × 4.184 = 4.184 kJ.

Example: Convert 10 kcal to kJ

10 kcal × 4.184 = 41.84 kJ

Kilocalories to Kilojoules Conversion Table

Common values from kcal to kJ.

Kilocalories to Kilojoules Conversion Table
kcal kJ
1 4.184
2 8.368
3 12.552
4 16.736
5 20.92
6 25.104
7 29.288
8 33.472
9 37.656
10 41.84
11 46.024
12 50.208
13 54.392
14 58.576
15 62.76
16 66.944
17 71.128
18 75.312
19 79.496
20 83.68
1 kcal 4.184 kJ
2 kcal 8.368 kJ
3 kcal 12.552 kJ
4 kcal 16.736 kJ
5 kcal 20.92 kJ
6 kcal 25.104 kJ
7 kcal 29.288 kJ
8 kcal 33.472 kJ
9 kcal 37.656 kJ
10 kcal 41.84 kJ
11 kcal 46.024 kJ
12 kcal 50.208 kJ
13 kcal 54.392 kJ
14 kcal 58.576 kJ
15 kcal 62.76 kJ
16 kcal 66.944 kJ
17 kcal 71.128 kJ
18 kcal 75.312 kJ
19 kcal 79.496 kJ
20 kcal 83.68 kJ