Kilojoules to calories Converter

Enter the kilojoules, then press Calculate. The calories 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 kilojoules and the next step needs calories. 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 kilojoule = 239.00573614 calories.

A worked example

10 kilojoules are 2,390.05736138 calories. 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 calories to kilojoules. A nearby pair in the same units is kilojoules to kiloelectronvolts. When the converted number is the input to a job, continue with the calorie intake.