Convert joules to calories

Joules to calories. Enter a value to convert, or use the joules to calories chart further down the page.

1 J = 0.2390057361 cal

1 joule equals 0.2390057361 calories. Going the other way, 1 calorie = 4.184 joules.

How to convert joules to calories

To convert joules to calories, multiply the joule value by 0.2390057361. You can also divide by 4.184 to get the same answer.

cal = J × 0.2390057361

Convert 15 J to calories:

15 J = 3.585086042 cal

Use this joules to calories table for quick reference without typing anything.

The joule is the SI unit of energy: the work done by a force of one newton acting over one meter.

The thermochemical calorie is defined as exactly 4.184 joules. Note that the “calories” on food labels are actually kilocalories.

How many calories are in a joule?

1 joules equals 0.2390057361 calories. Going the other way, 1 calories is 4.184 joules.

How do you convert joules to calories?

To convert joules to calories, multiply the joule value by 0.2390057361. You can also divide by 4.184 to get the same answer.

What is 10 joules in calories?

10 joules equals 2.390057361 calories. The conversion chart on this page lists the other values people look up most often.