mAh to Watts

Capacity (mAh)

Voltage (V)

Enter the values above

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Example of mAh to Watts Calculations

To convert milliampere-hours (mAh) to watts (W), you need to know the voltage (V) of the battery. The formula to convert mAh to watts is:

Watts=mAh×Volts/1000

For these calculations, let's assume a common voltage of 3.7V, which is typical for lithium-ion batteries.

Below is a table showing the conversion of various mAh values to watts. sorted from smallest to largest. assuming a voltage of 3.7V.

mAh	Voltage (V)	Watts (W)	mAh	Voltage (V)	Watts (W)
500.00	3.70	1.85	650.00	3.70	2.41
1000.00	3.70	3.70	1200.00	3.70	4.44
1500.00	3.70	5.55	1800.00	3.70	6.66
2000.00	3.70	7.40	2200.00	3.70	8.14
2400.00	3.70	8.88	2500.00	3.70	9.25
2600.00	3.70	9.62	3000.00	3.70	11.10
3200.00	3.70	11.84	4000.00	3.70	14.80
4500.00	3.70	16.65	4800.00	3.70	17.76
5000.00	3.70	18.50	5200.00	3.70	19.24
6000.00	3.70	22.20	8000.00	3.70	29.60
10000.00	3.70	37.00	15000.00	3.70	55.50
20000.00	3.70	74.00	25000.00	3.70	92.50
30000.00	3.70	111.00	40000.00	3.70	148.00
42000.00	3.70	155.40	42800.00	3.70	158.36
50000.00	3.70	185.00	80000.00	3.70	296.00

To convert 5000 mAh to watts at 3.7V:

Watts=5000×3.7/1000=18.50 W

To convert 10000 mAh to watts at 3.7V:

Watts=10000×3.7/1000=37.00 W

To convert 20000 mAh to watts at 3.7V:

Watts=20000×3.7/1000=74.00 W