Both mAh and Wh are useful units for calculating the amount of energy that is received by the system from the source.

• mAh is used to indicate the rating of the battery as well as the amount of charge that is stored in the battery and
• Wh is used to indicate the amount of energy that is consumed by the equipment.

mAh to Wh calculator that can convert milliampere-hours (mAh) and voltage measured in volts to watt-hours (Wh).

E = Q x V / 1000

Wh = mAh x V / 1000

In the boxes below, enter the milliamp hour (mAh) and voltage (V):

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