Energy
Watt-hours to Calories
Convert watt-hours to calories instantly.
About this conversion
Watt-hours (Wh) are used for battery capacity and electricity consumption reports. A calorie (cal) is the energy needed to raise 1 g of water by 1°C. 1 cal = 4.184 J. 1 Watt-hours equals 860.42 calories. The converter above calculates the result instantly — you can also swap the units to convert in the other direction.
How to use
Enter a value in the watt-hours field and instantly see the result in calories. Click the swap button to reverse the conversion.
Manual calculation
1 watt-hours = 860.42 calories. Example: 10 Wh = 8,604.2 cal.
Frequently asked questions
How do you convert watt-hours to calories?
Multiply the number of watt-hours by 860.42 to get calories. Example: 10 Wh × 860.42 = 8,604.2 cal.
Are watt-hours bigger or smaller than calories?
Watt-hours is larger than Calories. One watt-hour equals 860.42 calories, so the result is a larger number when converting from watt-hours to calories.
What is 5 watt-hours in calories?
5 Wh equals 4,302.1 cal.
How many watt-hours are in 1 calorie?
1 cal equals 0.0011622 Wh. This is the reverse conversion — useful if you have a value in calories and want it in watt-hours.
What is watt-hour?
Watt-hours (Wh) are used for battery capacity and electricity consumption reports.
What is calorie used for?
A calorie (cal) is the energy needed to raise 1 g of water by 1°C. 1 cal = 4.184 J.