To use the calculator, simply enter the energy and voltage values in the respective input fields and click the “Calculate” button. The result will be displayed on the webpage. To start a new calculation, click the “Reset” button to clear the input fields and result.
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Watt-Hours to Milliamp-Hours Calculation Formula
Q(mAh) = 1000 × E(Wh) / V(V), where
Q(mAh) – electric charge in milliamp-hours (mAh),
E(Wh) – energy in watt-hours (Wh),
V(V) – voltage in volts (V).
Example.
A real-life example for Wh can be the energy consumption of a laptop battery. Let’s assume that a laptop has a 60 Wh battery, and it can operate on a voltage of 11.1 volts. To calculate the charge in milliamp-hours (mAh), we can use the formula:
Q(mAh) = 1000 × E(Wh) / V(V) = (60 * 1000) / 11.1 = 5405.41 mAh
Watt Hours to Milliamp Hours Conversion Chart
Here’s a conversion chart converting watt hours to milliamp hours at 11.1V, the most common voltage for electronic devices:
| Watt Hours (Wh) | Milliampere Hours (mAh) |
|---|---|
| 1 Wh | 90.09 mAh |
| 2 Wh | 180.18 mAh |
| 3 Wh | 270.27 mAh |
| 4 Wh | 360.36 mAh |
| 5 Wh | 450.45 mAh |
| 6 Wh | 540.54 mAh |
| 7 Wh | 630.63 mAh |
| 8 Wh | 720.72 mAh |
| 9 Wh | 810.81 mAh |
| 10 Wh | 900.9 mAh |
| 20 Wh | 1801.8 mAh |
| 30 Wh | 2702.7 mAh |
| 37 Wh | 3333.33 mAh |
| 40 Wh | 3603.6 mAh |
| 50 Wh | 4504.5 mAh |
| 60 Wh | 5405.4 mAh |
| 70 Wh | 6306.3 mAh |
| 74 Wh | 6666.67 mAh |
| 80 Wh | 7207.2 mAh |
| 90 Wh | 8108.1 mAh |
| 100 Wh | 9009 mAh |
| 160 Wh | 14414.41 mAh |
| 200 Wh | 18018.02 mAh |
| 300 Wh | 27027.03 mAh |
| 400 Wh | 36036.04 mAh |
| 500 Wh | 45045.05 mAh |
| 600 Wh | 54054.05 mAh |
| 700 Wh | 63063.06 mAh |
| 800 Wh | 72072.07 mAh |
| 900 Wh | 81081.08 mAh |
| 1000 Wh | 90090.09 mAh |
