Divide the number of joules by 4.184 to get calories, since one small calorie equals 4.184 joules. The browser-based energy converter does this instantly and also handles kilojoules, kilocalories, watt-hours and BTU, all in your browser with nothing uploaded.
The joule is the standard scientific unit of energy, and the calorie is defined in relation to it: one small calorie equals exactly 4.184 joules. So to convert joules to calories you divide by 4.184. Note that the food Calorie with a capital C is actually a kilocalorie, equal to 1000 small calories, which is why energy labels use much smaller numbers than the joule figure would suggest.
The energy converter moves between joules, kilojoules, calories, kilocalories, watt-hours, kilowatt-hours and BTU, updating live as you type. That covers physics homework, nutrition labels and electricity readings with the same tool. It runs locally in your browser, so the values you enter never leave your device.
One small calorie equals 4.184 joules, so divide joules by 4.184 to get calories.
No. A food Calorie is a kilocalorie, equal to 1000 small calories.
Yes. The conversion runs in your browser with nothing uploaded.