Calories to watt-hours Converter

Enter the calories, then press Calculate. The watt-hours stay hidden while you type.

Press Calculate after the entries are in.

What this energy conversion is for

Use this page when a measurement is written in calories and the next step needs watt-hours. The number stays blank until you press Calculate, so a half-typed entry is never mistaken for the answer.

The factor

Multiply by the factor: 1 calorie = 0.00116222 watt-hours.

A worked example

10 calories are 0.01162222 watt-hours. Multiply the result by the reverse factor if you want the original number back.

How to check it

Write the factor down, do the multiply on paper, and compare it with the result card. If you change a sentence on this page, edit the HTML file and reload. The form and this note live in the same file.

The reverse conversion is watt-hours to calories. A nearby pair in the same units is megawatt-hours to watt-hours. When the converted number is the input to a job, continue with the electricity cost.