Energy Converter

An energy converter is a web tool used to convert measurements of energy, work, or heat between different scales like Joules, calories, and Kilowatt-hours.

To convert Joules to thermochemical calories, multiply the Joule value by 0.239006, or divide by 4.184.

A kilowatt-hour is a unit of energy equivalent to one kilowatt of power sustained for one hour, which equals exactly 3,600,000 Joules.

A BTU is the amount of heat energy needed to raise the temperature of one pound of water by one degree Fahrenheit. 1 BTU is approximately 1,055.06 Joules.

This tool converts the input value to a base unit (Joules) using predefined high-precision multiplier coefficients, then converts from Joules to the target unit.

Yes, all energy calculations are done strictly on your local browser using client-side JavaScript. No data is sent to external servers.

A kilocalorie (kcal or food calorie) is equal to 1,000 small calories (cal). Calories on food labels are typically kilocalories.

A US Therm is a unit of heat energy equal to 100,000 BTUs, commonly used in natural gas billing. It equals approximately 105.48 Megajoules.

Yes, you can click the 'Copy Result' button to instantly copy the converted energy value and its unit to your clipboard.

Yes, the layout is fully responsive and optimized for mobile devices, tablets, and desktops.