Convert Calories to Joules

Enter your calorie value in the form below to get the value calculated in joules.

Results in Joules:

1 cal = 4.184 J

How to Convert Calories to Joules

Convert calories to joules with this simple formula:

joules = calories × 4.184

Converting a calorie energy measurement to a joule measurement involves multiplying the energy by the conversion ratio to find the result. One calorie is equal to 4.184 joules, so to convert simply multiply by 4.184.

For example:

5 cal = (5 × 4.184) = 20.92 J

Calories and joules are both units used to measure energy. Learn more about energy and find more energy measurement conversion calculators. Calories are an energy measurement and can be abbreviated as cal, for example 1 cal. Joules are an SI derived unit of energy and can be abbreviated as J, for example 1 J.

Convert Joules to Calories

Calorie Measurements and Equivalent Joule Conversions

Common calorie values converted to the equivalent joule value
Calories	Joules
1 cal	4.184 J
2 cal	8.368 J
3 cal	12.55 J
4 cal	16.74 J
5 cal	20.92 J
6 cal	25.1 J
7 cal	29.29 J
8 cal	33.47 J
9 cal	37.66 J
10 cal	41.84 J
11 cal	46.02 J
12 cal	50.21 J
13 cal	54.39 J
14 cal	58.58 J
15 cal	62.76 J
16 cal	66.94 J
17 cal	71.13 J
18 cal	75.31 J
19 cal	79.5 J
20 cal	83.68 J
21 cal	87.86 J
22 cal	92.05 J
23 cal	96.23 J
24 cal	100.42 J
25 cal	104.6 J
26 cal	108.78 J
27 cal	112.97 J
28 cal	117.15 J
29 cal	121.34 J
30 cal	125.52 J
31 cal	129.7 J
32 cal	133.89 J
33 cal	138.07 J
34 cal	142.26 J
35 cal	146.44 J
36 cal	150.62 J
37 cal	154.81 J
38 cal	158.99 J
39 cal	163.18 J
40 cal	167.36 J

More Calorie Energy Conversions

Joules

Convert to Kilojoules: 1 cal is equal to 0.004184 kilojoules
Convert to Megajoules: 1 cal is equal to 4.184E-6 megajoules
Convert to Gigajoules: 1 cal is equal to 4.184E-9 gigajoules

Calories

Convert to Kilocalories: 1 cal is equal to 0.001 kilocalories
Convert to Megacalories: 1 cal is equal to 1.0E-6 megacalories

Watts x Time

Convert to Watt-hours: 1 cal is equal to 0.001162 watt-hours
Convert to Kilowatt-hours: 1 cal is equal to 1.1622E-6 kilowatt-hours
Convert to Megawatt-hours: 1 cal is equal to 1.1622E-9 megawatt-hours
Convert to Watt-seconds: 1 cal is equal to 4.184 watt-seconds

Thermal Units

Convert to British Thermal Units: 1 cal is equal to 0.003966 british thermal units
Convert to Million BTU: 1 cal is equal to 3.9657E-9 million BTU
Convert to Therms: 1 cal is equal to 3.9657E-8 therms
Convert to Quads: 1 cal is equal to 3.9657E-18 quads

Electronvolts

Convert to Electronvolts: 1 cal is equal to 26,114,000,000,000,000,000 electronvolts
Convert to Kiloelectronvolts: 1 cal is equal to 26,114,000,000,000,000 kiloelectronvolts
Convert to Megaelectronvolts: 1 cal is equal to 26,114,475,092,200.6 megaelectronvolts