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Milliampere-Hour Converters

Convert milliampere-hours (mAh) to and from ampere-hours, coulombs, and other charge units.

What this tool does

Convert milliampere-hours (mAh) to and from ampere-hours, coulombs, and other charge units. Type an amount in milliampere-hours, choose the units, and the tool converts it to ampere-hours. It offers 9 electric charge units and also shows the same amount in the others.

Inputs

  • Value: A number.
  • From: Choose one from 9 options, including Milliampere-hour, Ampere-hour, Microampere-hour, Kiloampere-hour, Coulomb, Millicoulomb. Starts as Milliampere-hour.
  • To: Choose one of the same 9 units as "From". Starts as Ampere-hour.

How to use

  1. Enter the amount you want to convert.
  2. Choose the unit to convert from and the unit to convert to.
  3. Read the result: the converted amount and the same amount in the other units. It appears once every required field has a valid value.

Worked examples

Conversions from milliampere-hours to ampere-hours:

  • 1 mAh = 0.001 Ah
  • 5 mAh = 0.005 Ah
  • 10 mAh = 0.01 Ah
  • 50 mAh = 0.05 Ah
  • 100 mAh = 0.1 Ah

Multiply the number of milliampere-hours by 0.001 to get ampere-hours. Both units are exact definitions, so 0.001 is the exact factor: 1 mAh = 0.001 Ah.

Sources: Milliampere-hour: exact by definition. Ampere-hour: exact by definition.

Limitations

  • Milliampere-hours and ampere-hours measure charge. To get watt-hours you also need the battery voltage, which this converter does not use.

FAQs

Q: How many coulombs are in a milliampere-hour?
A: One milliampere-hour is 3.6 coulombs, because 0.001 A flowing for 3600 s moves 3.6 C. One ampere-hour is 3600 coulombs.
Q: How many milliampere-hours are in an ampere-hour?
A: There are 1000 milliampere-hours in one ampere-hour.
Q: Can I convert mAh to watt-hours here?
A: No. Watt-hours measure energy, and converting needs the battery voltage. This page converts charge units only.

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