Watt-hours to milliamp-hours
Type a value in Wh to get it in mAh instantly.
That's 10× as big as an e-bike battery, while a home battery is 2.7× bigger. That is about 333.3 full phone charges.
Convert the other way: mAh to Wh
What it means
How much energy is that?
Airlines limit spare batteries to 100 Wh without approval, which is why the Wh figure matters.
The math
How to convert Wh to mAh
Charge becomes energy only once you know the voltage: Wh = mAh × V ÷ 1000. The figures below use the voltage selected above.
Example: 5,000 Wh = 1,351,350 mAh.
The table below assumes Phone cell (3.7 V). Change the voltage above and every number updates.
Every unit
Your capacity in every unit
Tables
Wh to mAh conversion table
| Wh | mAh |
|---|---|
| 500 Wh | 135,135 mAh |
| 1,000 Wh | 270,270 mAh |
| 2,000 Wh | 540,541 mAh |
| 3,000 Wh | 810,811 mAh |
| 4,000 Wh | 1,081,080 mAh |
| 5,000 Wh | 1,351,350 mAh |
| 6,000 Wh | 1,621,620 mAh |
| 8,000 Wh | 2,162,160 mAh |
| 10,000 Wh | 2,702,700 mAh |
| 15,000 Wh | 4,054,050 mAh |
| 20,000 Wh | 5,405,410 mAh |
| 30,000 Wh | 8,108,110 mAh |
mAh to Wh conversion table
| mAh | Wh |
|---|---|
| 500 mAh | 1.85 Wh |
| 1,000 mAh | 3.7 Wh |
| 2,000 mAh | 7.4 Wh |
| 3,000 mAh | 11.1 Wh |
| 4,000 mAh | 14.8 Wh |
| 5,000 mAh | 18.5 Wh |
| 6,000 mAh | 22.2 Wh |
| 8,000 mAh | 29.6 Wh |
| 10,000 mAh | 37 Wh |
| 15,000 mAh | 55.5 Wh |
| 20,000 mAh | 74 Wh |
| 30,000 mAh | 111 Wh |
Quick answers
Quick answers
- How many mAh is 1 Wh?
- 1 Wh is 270.27 mAh.
- How many mAh is 10 Wh?
- 10 Wh is 2,702.7 mAh.
- How many mAh is 5,000 Wh?
- 5,000 Wh is 1,351,350 mAh.
The units
About these units
Watt-hours (Wh)
The honest measure of a battery: energy, not charge. Airlines and regulators use it.
Milliamp-hours (mAh)
Charge, not energy: how many milliamps the cell can deliver for an hour. Needs a voltage to mean anything.
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