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Calorie to Watt hour

Convert Calorie to Watt hour and get the exact value instantly.

About this conversion

To convert Calorie to Watt hour, multiply the number of Calorie by 0.001162222222.

Energy shows up as joules, calories, kilowatt-hours or BTU depending on the field (nutrition, an electricity bill, heating or physics), so a conversion makes the numbers comparable.

Conversion table

Calorie (cal)Watt hour (Wh)
1 cal0.001162222222 Wh
2 cal0.002324444444 Wh
5 cal0.005811111111 Wh
10 cal0.01162222222 Wh
100 cal0.1162222222 Wh

How to use this converter

  1. Enter your Calorie value

    Type any number into the Calorie field. It starts at 1 so you can read the rate straight away.

  2. Read the Watt hour result

    The amount in Watt hour updates as you type, so there is no button to press and nothing to wait for.

  3. Swap or keep exploring

    Use the swap control to flip the direction, or pick a related conversion from the list below.

Frequently asked

How many Watt hour are in one Calorie?
One Calorie equals 0.001162222222 Wh. Enter any amount above to get an exact figure for your own value.
Is this converter accurate?
Yes. It uses the exact international definition of each unit and computes on your device, so the only rounding is for display.
Do you upload the numbers I enter?
No. The Calorie to Watt hour conversion runs entirely in your browser tab, and nothing you type is sent to a server.
Does it work on my phone?
Yes. It runs in any modern mobile browser and keeps working offline once the page has loaded.

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