Energy Converter
Convert common energy units accurately with a simple global tool.
Energy converter
Convert energy measurements for electricity, science, engineering, nutrition and everyday calculations.
How it works
Enter your values, choose the relevant units or options, and review the calculated result. For financial and market tools, displayed figures are calculations and can differ from provider quotes, fees, spreads, taxes or local rules.
Frequently asked questions
What is a kilowatt-hour?
A kilowatt-hour is an energy unit equal to one kilowatt of power used continuously for one hour.
Is a calorie the same as a kilocalorie?
In nutrition, “Calorie” with a capital C commonly means one kilocalorie, equal to 1,000 small calories.
Can I convert kWh to joules?
Yes. One kilowatt-hour equals 3.6 million joules.