An mAh to kWh calculator converts the capacity of batteries from milliampere-hours, commonly used to describe the energy charge that a battery will hold, to kilowatt-hours, a larger unit used more commonly in larger-scale applications like household electricity accounting. This tool is invaluable for comparing the energy capacity of different types of batteries and devices, enabling consumers and professionals alike to make better choices.
Formula of mAh to kWh Calculator
To convert milliampere-hours to kilowatt-hours, use the following formula:
Where:
- mAh is the battery capacity in milliampere-hours.
- V is the voltage of the battery.
- kWh is the energy in kilowatt-hours.
This formula accounts for the voltage of the battery, which is essential because energy capacity (kWh) is a function of both charge (mAh) and voltage (V).
Table of Typical Conversions
| Battery Capacity (mAh) | Voltage (V) | Energy (kWh) |
|---|---|---|
| 1000 | 3.7 | 0.0037 |
| 2000 | 3.7 | 0.0074 |
| 3000 | 3.7 | 0.0111 |
| This table helps users quickly understand how different battery capacities translate into kilowatt-hours without manually performing the calculation. |
Example of mAh to kWh Calculator
Example: Converting a 5000 mAh battery at 3.7V to kWh.
Using the formula:
kWh = (5000 * 3.7 * 0.000001) = 0.0185 kWh
This calculation shows that a typical smartphone battery can store about 0.0185 kWh of energy.
Most Common FAQs
Converting mAh to kWh is essential for comparing the energy capacity of batteries in larger scales and different contexts, including utility-related assessments.
The accuracy of the calculator depends on the correct input of battery capacity and voltage. It is highly reliable for standard battery types.
Yes, the calculator is versatile and can be used for any battery as long as the mAh and voltage are known.