Insert the Amp hours (Ah) and voltage (V) below and click on Calculate to obtain Watt hours (Wh).

Ah

V

Wh

Formula is (Ah)*(V) = (Wh).
For example, if you have a 2 Ah battery rated at 5 V, the power is 2Ah * 5V = 10Wh.

Insert Watts-hour (Wh) and voltage (V) below and click on Calculate to obtain Amp-hours (Ah).

Wh

V

mAh

Formula is (Wh)/(V) =(Ah).
For example, if you have a 10Wh battery rated at 5V, the current is 10Wh / 5V = 2Ah.

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For other conversions go to Convert-formula.com