How many joules in 1 watt hours?
The answer is 3599.99999712.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between joules and watt hours.
Type in your own numbers in the form to convert the units!
You can do the reverse unit conversion from watt hours to joules, or enter any two units below:
The joule (symbol J, also called newton meter, watt second, or coulomb volt) is the SI unit of energy and work. The unit is pronounced to rhyme with "tool", and is named in honor of the physicist James Prescott Joule (1818-1889).
ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!