Health & Fitness

Energy Content Calculator

Our energy content calculator is a tool that calculates the amount of energy contained in a given quantity of a substance or food item.

Luis Anaya

Jan 15 2021

Pick an energy unit from the unit dropdown and enter an energy value in the input below.

Frequently Asked Questions

Have a question about this calculator? See our list of frequently asked questions below.

How do you convert calories to kilojoules?

To convert from calories to kilojoules you multiply the number of kilojoules by 4.2.

How do you convert kilojoules to calories?

To convert from kilojoules to calories you divide the number of kilojoules by 4.2.