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Quickly convert watt-hours (Wh) to milliamp-hours (mAh) with this calculator. Enter Wh, voltage (V), and get the battery capacity in mAh. Accurate and easy-to-use tool.
If you're working with battery specs or designing a power supply, converting Wh to mAh is essential. This tool takes the guesswork out of the calculation by using the standard formula to determine how much electric charge a battery stores based on its energy and voltage.
Example: 3 Wh at 3.7V → (3 × 1000) ÷ 3.7 ≈ 810.81 mAh
Use this simple calculator to convert Watt-hours (Wh) to milliamp-hours (mAh). Just input the energy (Wh) and voltage (V), and you'll get the battery capacity in mAh. Ideal for electronics, lithium batteries, and power banks.
| Wh | Voltage (V) | mAh |
|---|---|---|
| 10 | 5 | 2000 |
| 7.4 | 3.7 | 2000 |
Use the formula: mAh = (Wh × 1000) ÷ Voltage (V).
Milliamp-hours (mAh) measure electric charge or battery capacity.
You need watt-hours (Wh) and voltage (V).
Yes, it's commonly used for lithium-ion cells.
Yes, use Wh = (mAh × V) ÷ 1000.
To convert amps to milliamps since 1 A = 1000 mA.
Use 5V unless your device specifies otherwise.
Yes, it's free and accessible online.
Yes, it helps determine battery capacity needed.
The result is in milliamp-hours (mAh).
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Quickly convert watts to VA (volt-amps) for AC systems using this free calculator. Accurate results for single-phase and three-phase power. Fast, simple & online.
Use our free kWh to Watts calculator to convert kilowatt-hours to watts based on usage time. Fast, accurate, and perfect for electrical planning.
Easily convert kilowatts (kW) to kilowatt-hours (kWh) using our calculator. Quick, accurate energy conversion for homes, industries, and solar usage.
Use our free VA to kVA calculator to quickly convert volt-amperes (VA) to kilovolt-amperes (kVA) with formula, examples, and conversion table.
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