Convert calories to Wh

Calories to watt hours. Enter a value to convert, or use the calories to Wh chart further down the page.

1 cal = 0.001162222222 Wh

1 calorie equals 0.001162222222 watt hours. Going the other way, 1 watt hour = 860.4206501 calories.

How to convert calories to Wh

To convert calories to watt hours, multiply the calorie value by 0.001162222222. You can also divide by 860.4206501 to get the same answer.

Wh = cal × 0.001162222222

Convert 15 cal to watt hours:

15 cal = 0.01743333333 Wh

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

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

A watt hour is exactly 3,600 joules — the energy used by a one-watt device in one hour. Battery capacity is rated in watt hours.

How many Wh are in a calorie?

1 calories equals 0.001162222222 Wh. Going the other way, 1 Wh is 860.4206501 calories.

How do you convert calories to Wh?

To convert calories to watt hours, multiply the calorie value by 0.001162222222. You can also divide by 860.4206501 to get the same answer.

What is 10 calories in Wh?

10 calories equals 0.01162222222 Wh. The conversion chart on this page lists the other values people look up most often.