Amp Hours (Ah) to Watt Hours (Wh) Calculator

What are Amp Hours (Ah)?

Amp hours measure electrical charge capacity, commonly used for batteries. One amp hour equals the charge transferred by a steady current of one ampere flowing for one hour.

What are Watt Hours (Wh)?

Watt hours measure energy capacity. One watt hour is the energy equivalent to one watt sustained for one hour. It's commonly used to specify battery and power system capacity.

Conversion Formula

Watt Hours = Amp Hours × Voltage

For example: 100 Ah × 12 V = 1,200 Wh