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Example of mAh to Wh Calculations
To convert milliampere-hours (mAh) to watt-hours (Wh). you need to know the voltage (V) of the battery. The formula to convert mAh to Wh is:
Wh=mAh×Volts/1000
Assuming a common voltage of 3.7V, which is typical for lithium-ion batteries.
Table of mAh to Wh Conversions
Below is a table showing the conversion of various mAh values to Wh. sorted from smallest to largest. assuming a voltage of 3.7V.
|
mAh |
Voltage (V) |
Wh |
|
1000.00 |
3.70 |
3.70 |
|
2000.00 |
3.70 |
7.40 |
|
2500.00 |
3.70 |
9.25 |
|
3000.00 |
3.70 |
11.10 |
|
4000.00 |
3.70 |
14.80 |
|
4310.00 |
3.70 |
15.95 |
|
5000.00 |
3.70 |
18.50 |
|
5200.00 |
3.70 |
19.24 |
|
6000.00 |
3.70 |
22.20 |
|
7000.00 |
3.70 |
25.90 |
|
7800.00 |
3.70 |
28.86 |
|
10000.00 |
3.70 |
37.00 |
|
12000.00 |
3.70 |
44.40 |
|
15000.00 |
3.70 |
55.50 |
|
18000.00 |
3.70 |
66.60 |
|
20000.00 |
3.70 |
74.00 |
|
24000.00 |
3.70 |
88.80 |
|
25000.00 |
3.70 |
92.50 |
|
25600.00 |
3.70 |
94.72 |
|
26800.00 |
3.70 |
99.16 |
|
27000.00 |
3.70 |
99.90 |
|
27650.00 |
3.70 |
102.31 |
|
30000.00 |
3.70 |
111.00 |
|
35000.00 |
3.70 |
129.50 |
|
36000.00 |
3.70 |
133.20 |
|
36800.00 |
3.70 |
136.16 |
|
38800.00 |
3.70 |
143.56 |
|
40000.00 |
3.70 |
148.00 |
|
42800.00 |
3.70 |
158.36 |
|
50000.00 |
3.70 |
185.00 |
|
60000.00 |
3.70 |
222.00 |
|
70000.00 |
3.70 |
259.00 |
Convert 10000 mAh to Wh
To convert 10000 mAh to Wh at 3.7V:
Wh=10000×3.7/1000=37 Wh
Convert 20000 mAh to Wh
To convert 20000 mAh to Wh at 3.7V:
Wh=20000×3.7/1000=74 Wh
Convert 24000 mAh to Wh
To convert 24000 mAh to Wh at 3.7V:
Wh=24000×3.7/1000=88.8 Wh