To convert milliamp hours to kilowatt hours, the formula is kilowatt hours = (milliamp hours x volts) / 1,000,000.
For example, if you have a 3.7V 10,000mAh battery pack, the calculation would be (10,000 x 3.7) / 1,000,000 = 0.037 kWh.
Milliamp Hours to Kilowatt Hours Conversion Calculator
Or would you rather convert kilowatt hours to milliamp hours?
Milliamp Hours to Kilowatt Hours Conversion Charts
Here are 2 conversion charts converting common values of milliamp hours to kilowatt hours at 3.7 volts and 5 volts -- 2 common DC voltages for battery-powered electronics such as phones, portable chargers, and Bluetooth speakers.
Milliamp Hours to Kilowatt Hours at 3.7 Volts
| Milliamp Hours (mAh) | Voltage (V) | Kilowatt Hours (kWh) |
|---|---|---|
| 1000 mAh | 3.7 V | 0.004 kWh |
| 2000 mAh | 3.7 V | 0.007 kWh |
| 3000 mAh | 3.7 V | 0.011 kWh |
| 4000 mAh | 3.7 V | 0.015 kWh |
| 5000 mAh | 3.7 V | 0.019 kWh |
| 6000 mAh | 3.7 V | 0.022 kWh |
| 7000 mAh | 3.7 V | 0.026 kWh |
| 8000 mAh | 3.7 V | 0.03 kWh |
| 9000 mAh | 3.7 V | 0.033 kWh |
| 10000 mAh | 3.7 V | 0.037 kWh |
| 11000 mAh | 3.7 V | 0.041 kWh |
| 12000 mAh | 3.7 V | 0.044 kWh |
| 13000 mAh | 3.7 V | 0.048 kWh |
| 14000 mAh | 3.7 V | 0.052 kWh |
| 15000 mAh | 3.7 V | 0.056 kWh |
| 16000 mAh | 3.7 V | 0.059 kWh |
| 17000 mAh | 3.7 V | 0.063 kWh |
| 18000 mAh | 3.7 V | 0.067 kWh |
| 19000 mAh | 3.7 V | 0.07 kWh |
| 20000 mAh | 3.7 V | 0.074 kWh |
| 25000 mAh | 3.7 V | 0.093 kWh |
| 30000 mAh | 3.7 V | 0.111 kWh |
Milliamp Hours to Kilowatt Hours at 5 Volts
| Milliamp Hours (mAh) | Voltage (V) | Kilowatt Hours (kWh) |
|---|---|---|
| 1000 mAh | 5 V | 0.005 kWh |
| 2000 mAh | 5 V | 0.01 kWh |
| 3000 mAh | 5 V | 0.015 kWh |
| 4000 mAh | 5 V | 0.02 kWh |
| 5000 mAh | 5 V | 0.025 kWh |
| 6000 mAh | 5 V | 0.03 kWh |
| 7000 mAh | 5 V | 0.035 kWh |
| 8000 mAh | 5 V | 0.04 kWh |
| 9000 mAh | 5 V | 0.045 kWh |
| 10000 mAh | 5 V | 0.05 kWh |
| 11000 mAh | 5 V | 0.055 kWh |
| 12000 mAh | 5 V | 0.06 kWh |
| 13000 mAh | 5 V | 0.065 kWh |
| 14000 mAh | 5 V | 0.07 kWh |
| 15000 mAh | 5 V | 0.075 kWh |
| 16000 mAh | 5 V | 0.08 kWh |
| 17000 mAh | 5 V | 0.085 kWh |
| 18000 mAh | 5 V | 0.09 kWh |
| 19000 mAh | 5 V | 0.095 kWh |
| 20000 mAh | 5 V | 0.1 kWh |
| 25000 mAh | 5 V | 0.125 kWh |
| 30000 mAh | 5 V | 0.15 kWh |
Note: Don't see the values you're looking for in these charts? Use our mAh to kWh calculator at the top of this page to calculate them for your specific scenario.
How to Convert Milliamp Hours to Kilowatt Hours (mAh to kWh)
To convert milliamp hours to kilowatt hours, multiply milliamp hours by volts and then divide by 1,000,000. (And no, that's not a typo!)
Conversion formula: kilowatt hours = milliamp hours × volts ÷ 1,000,000
Abbreviated formula: kWh = mAh × V ÷ 1,000,000
Example
Let's say you have a smartphone with a battery capacity of 3,000 milliamp hours (mAh) and a voltage of 3.7 volts.
To calculate your battery's kilowatt hours, you'd do the following:
(3,000 mAh × 3.7 V) ÷ 1,000,000 = 0.0111 kWh
So, your phone battery has a capacity of about 0.0111 kilowatt hours.
How to Convert Kilowatt Hours to Milliamp Hours (kWh to mAh)
Need to convert the other way?
To convert kilowatt hours to milliamp hours, divide kilowatt hours by volts and then multiply by 1,000,000.
Conversion formula: milliamp hours = kilowatt hours ÷ volts × 1,000,000
Abbreviated formula: mAh = kWh ÷ V × 1,000,000
Example
Suppose you have a device that uses 0.05 kilowatt hours (kWh) of energy and operates at a voltage of 5 volts.
To find out how many milliamp hours (mAh) that is, you can do the following calculation:
(0.05 kWh ÷ 5 V) × 1,000,000 = 10,000 mAh
So, your device uses approximately 10,000 mAh of energy at 5 volts.
