What does this energy converter convert?
Energy comes in many units — joules (SI), calories (food / nutrition), kilowatt-hours (electricity bills), BTU (heating/cooling), electronvolts (atomic physics). This tool converts cleanly between all of them.
How conversion works
All units are normalised to joules internally, then converted to the target. For example, 1 kcal = 4,184 J = 1.163 Wh.