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mAh to Wh Calculator

Unit Converter ▼

Formula

The formula to calculate Watt-Hours (Wh) from Milliamp-Hours (mAh) and Voltage (V) is:

$E (\text{Wh}) = \frac{Q (\text{mAh}) \times V (\text{V})}{1000}$

Where:

$E$ is the Energy in Watt-Hours (Wh)
$Q$ is the Charge in Milliamp-Hours (mAh)
$V$ is the Voltage in Volts (V)

mAh to Wh Definition

mAh (milliamp-hours) is a unit of electric charge, representing the amount of charge a battery can hold. Wh (watt-hours) is a unit of energy, representing the amount of energy a battery can supply over time. The conversion from mAh to Wh depends on the voltage of the battery.

Example Calculation

Let's assume the following values:

Charge ( $Q$ ) = 2000 mAh
Voltage ( $V$ ) = 3.7 V

Using the formula:

$E = \frac{2000 \times 3.7}{1000}$

$E = 7.4 \text{ Wh}$

The Energy (Wh) is 7.4 Wh.

mAh to Wh Conversion Table

Charge (mAh)	Voltage (V)	Energy (Wh)
1000	3.7	3.700
2000	3.7	7.400
3000	3.7	11.100
4000	3.7	14.800
5000	3.7	18.500
6000	3.7	22.200
7000	3.7	25.900
8000	3.7	29.600
9000	3.7	33.300
10000	3.7	37.000