To convert kilowatt hours to milliamp hours, the formula is milliamp hours = (kilowatt hours / volts) x 1,000,000.
For instance, if you have a device that consumes 1 kWh at 5 volts, the calculation would be (1 / 5) x 1,000,000 = 200,000 mAh.
Kilowatt Hours to Milliamp Hours Conversion Calculator
Or would you rather convert milliamp hours to kilowatt hours?
Kilowatt Hours to Milliamp Hours Conversion Charts
Here are a couple of conversion charts converting common values of kilowatt hours to milliamp hours at 3.7 volts and 5 volts, the most common DC voltages for small handheld electronics.
Kilowatt Hours to Milliamp Hours at 3.7 Volts
| Kilowatt Hours (kWh) | Voltage (V) | Milliamp Hours (mAh) |
|---|---|---|
| 1 kWh | 3.7 V | 270,270.27 mAh |
| 2 kWh | 3.7 V | 540,540.541 mAh |
| 3 kWh | 3.7 V | 810,810.811 mAh |
| 4 kWh | 3.7 V | 1,081,081.081 mAh |
| 5 kWh | 3.7 V | 1,351,351.351 mAh |
| 6 kWh | 3.7 V | 1,621,621.622 mAh |
| 7 kWh | 3.7 V | 1,891,891.892 mAh |
| 8 kWh | 3.7 V | 2,162,162.162 mAh |
| 9 kWh | 3.7 V | 2,432,432.432 mAh |
| 10 kWh | 3.7 V | 2,702,702.703 mAh |
| 20 kWh | 3.7 V | 5,405,405.405 mAh |
| 30 kWh | 3.7 V | 8,108,108.108 mAh |
| 40 kWh | 3.7 V | 10,810,810.811 mAh |
| 50 kWh | 3.7 V | 135,13,513.514 mAh |
| 60 kWh | 3.7 V | 16,216,216.216 mAh |
| 70 kWh | 3.7 V | 18,918,918.919 mAh |
| 80 kWh | 3.7 V | 21,621,621.622 mAh |
| 90 kWh | 3.7 V | 24,324,324.324 mAh |
| 100 kWh | 3.7 V | 27,027,027.027 mAh |
Kilowatt Hours to Milliamp Hours at 5 Volts
| Kilowatt Hours (kWh) | Voltage (V) | Milliamp Hours (mAh) |
|---|---|---|
| 1 kWh | 5 V | 200,000 mAh |
| 2 kWh | 5 V | 400,000 mAh |
| 3 kWh | 5 V | 600,000 mAh |
| 4 kWh | 5 V | 800,000 mAh |
| 5 kWh | 5 V | 1,000,000 mAh |
| 6 kWh | 5 V | 1,200,000 mAh |
| 7 kWh | 5 V | 1,400,000 mAh |
| 8 kWh | 5 V | 1,600,000 mAh |
| 9 kWh | 5 V | 1,800,000 mAh |
| 10 kWh | 5 V | 2,000,000 mAh |
| 20 kWh | 5 V | 4,000,000 mAh |
| 30 kWh | 5 V | 6,000,000 mAh |
| 40 kWh | 5 V | 8,000,000 mAh |
| 50 kWh | 5 V | 10,000,000 mAh |
| 60 kWh | 5 V | 12,000,000 mAh |
| 70 kWh | 5 V | 14,000,000 mAh |
| 80 kWh | 5 V | 16,000,000 mAh |
| 90 kWh | 5 V | 18,000,000 mAh |
| 100 kWh | 5 V | 20,000,000 mAh |
Note: Don't see the values you're looking for in this chart? Use our kWh to mAh calculator at the top of this page to calculate them for your specific scenario.
How to Convert Kilowatt Hours to Milliamp Hours (kWh to mAh)
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
For instance, let's take a 0.1 kilowatt-hour battery that operates at 3.7 volts, which is a common voltage for many rechargeable lithium-ion batteries.
To find the milliamp hours, you'd do the following:
0.1 kWh ÷ 3.7 V × 1,000,000 = 27,027.027 mAh
So, the battery has a capacity of approximately 27,027 milliamp hours.
How to Convert Milliamp Hours to Kilowatt Hours (mAh to kWh)
What about converting the other way?
To convert milliamp hours to kilowatt hours, multiply milliamp hours by volts and then divide by 1,000,000.
Conversion formula: kilowatt hours = milliamp hours × volts ÷ 1,000,000
Abbreviated formula: kWh = mAh × V ÷ 1,000,000
Example
Suppose you have a laptop with a battery capacity of 5,000mAh and a voltage of 11.1V.
Here's how you'd find its battery capacity in kilowatt hours:
5,000 mAh × 11.1 V ÷ 1,000,000 = 0.0555 kWh
This means your laptop battery has a capacity of 0.0555 kilowatt hours.
