Check out Similar Electrical Engineering Calculators
Convert battery capacity from mAh to Wh using this free calculator. Just enter mAh and voltage (V) to get watt-hours instantly. Ideal for electronics and battery comparisons.
The mAh to Wh calculator helps you estimate energy stored in a battery. Simply input the milliamp-hours and voltage, and it returns watt-hours using the formula: Wh = (mAh × V) ÷ 1000.
Example: 2000 mAh at 3.7V → (2000 × 3.7) ÷ 1000 = 7.4 Wh
Use this free mAh to Wh calculator to convert battery capacity. Just enter milliamp-hours (mAh) and voltage (V) to get watt-hours (Wh) instantly.
| Capacity (mAh) | Voltage (V) | Energy (Wh) |
|---|---|---|
| 1000 | 3.7 | 3.7 |
| 2000 | 3.7 | 7.4 |
Use the formula Wh = (mAh × V) ÷ 1000.
Wh = (mAh × Voltage) ÷ 1000.
It stands for milliamp-hours, indicating battery capacity.
Use the battery's rated voltage, usually printed on the label.
Yes, (5000 × 5) ÷ 1000 = 25 Wh.
Yes, completely free to use online.
Yes, just enter the typical 3.6V or 3.7V.
To convert milliamp-hours to amp-hours for the watt-hour equation.
Yes, it helps compare real energy capacity.
In electronics, power banks, and battery sizing.
Convert kilowatts (kW) to volt-amps (VA) with our easy calculator. Input power and power factor to get accurate VA for electrical systems.
Use this free Joules to kW calculator to convert energy (J) into kilowatts (kW) using time (seconds). Quick and accurate results for physics and electrical power calculations.
Use our free kW to Joules calculator to convert kilowatts into joules easily. Supports time input in seconds. Accurate, fast, and ideal for energy calculations.
Use this free Joules to Volts calculator to convert energy (J) into voltage (V) using charge (C). Ideal for physics and electronics applications. Quick and accurate.
Calculate electric vehicle battery voltage by multiplying the number of cells by nominal cell voltage. Essential tool for EV battery management.
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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