# Milliampere-Hour Conversion Calculator

Enter a value in milliampere-hours below to convert to another unit of electric charge.

## What Is a Milliampere-Hour?

A milliampere-hour is a unit used to measure electric charge.

The milliampere-hour is a non-SI metric unit for electric charge. In the metric system, "milli" is the prefix for thousandths, or 10-3. A milliampere-hour is sometimes also referred to as a milliamp-hour. Milliampere-hours are usually abbreviated as mAh, although the formally adopted expression is mA·h. The abbreviation mA h is also sometimes used. For example, 1 milliampere-hour can be written as 1 mAh, 1 mA·h, or 1 mA h.

In formal expressions, the centered dot (·) or space is used to separate units used to indicate multiplication in an expression and to avoid conflicting prefixes being misinterpreted as a unit symbol.[1]

## How Much Is a Milliampere-Hour?

One milliampere-hour is the electric charge equal to the charge conveyed by a current of one milliampere for one hour. One milliampere-hour is equal to 3.6 coulombs.

## How to Convert Milliampere-Hours

To convert milliampere-hours to another unit of electric charge, you need to multiply the value by a conversion factor. A conversion factor is a numerical value used to change the units of a measurement without changing the value.[2]

You can find the conversion factors for milliampere-hours in the conversion table below.

Then, multiply the electric charge measurement by the conversion factor to find the equivalent value in the desired unit of measurement.

milliampere-hours × conversion factor = result

You can also use a calculator, such as one of the converters below, for the conversion.

## Milliampere-Hour Conversion Table

Common milliampere-hour values and equivalent imperial and metric electric charge measurements
milliampere-hours coulombs millicoulombs microcoulombs nanocoulombs picocoulombs statcoulombs abcoulombs electron charge ampere-hours
1 mAh 3.6 C 3,600 mC 3,600,000 μC 3,600,000,000 nC 3,600,000,000,000 pC 10,792,512,000 stC 0.36 abC 22,469,000,000,000,000,000 e 0.001 Ah
2 mAh 7.2 C 7,200 mC 7,200,000 μC 7,200,000,000 nC 7,200,000,000,000 pC 21,585,024,000 stC 0.72 abC 44,939,000,000,000,000,000 e 0.002 Ah
3 mAh 10.8 C 10,800 mC 10,800,000 μC 10,800,000,000 nC 10,800,000,000,000 pC 32,377,535,999 stC 1.08 abC 67,408,000,000,000,000,000 e 0.003 Ah
4 mAh 14.4 C 14,400 mC 14,400,000 μC 14,400,000,000 nC 14,400,000,000,000 pC 43,170,047,999 stC 1.44 abC 89,878,000,000,000,000,000 e 0.004 Ah
5 mAh 18 C 18,000 mC 18,000,000 μC 18,000,000,000 nC 18,000,000,000,000 pC 53,962,559,999 stC 1.8 abC 112,350,000,000,000,000,000 e 0.005 Ah
6 mAh 21.6 C 21,600 mC 21,600,000 μC 21,600,000,000 nC 21,600,000,000,000 pC 64,755,071,999 stC 2.16 abC 134,820,000,000,000,000,000 e 0.006 Ah
7 mAh 25.2 C 25,200 mC 25,200,000 μC 25,200,000,000 nC 25,200,000,000,000 pC 75,547,583,998 stC 2.52 abC 157,290,000,000,000,000,000 e 0.007 Ah
8 mAh 28.8 C 28,800 mC 28,800,000 μC 28,800,000,000 nC 28,800,000,000,000 pC 86,340,095,998 stC 2.88 abC 179,760,000,000,000,000,000 e 0.008 Ah
9 mAh 32.4 C 32,400 mC 32,400,000 μC 32,400,000,000 nC 32,400,000,000,000 pC 97,132,607,998 stC 3.24 abC 202,220,000,000,000,000,000 e 0.009 Ah
10 mAh 36 C 36,000 mC 36,000,000 μC 36,000,000,000 nC 36,000,000,000,000 pC 107,925,119,998 stC 3.6 abC 224,690,000,000,000,000,000 e 0.01 Ah
11 mAh 39.6 C 39,600 mC 39,600,000 μC 39,600,000,000 nC 39,600,000,000,000 pC 118,717,631,997 stC 3.96 abC 247,160,000,000,000,000,000 e 0.011 Ah
12 mAh 43.2 C 43,200 mC 43,200,000 μC 43,200,000,000 nC 43,200,000,000,000 pC 129,510,143,997 stC 4.32 abC 269,630,000,000,000,000,000 e 0.012 Ah
13 mAh 46.8 C 46,800 mC 46,800,000 μC 46,800,000,000 nC 46,800,000,000,000 pC 140,302,655,997 stC 4.68 abC 292,100,000,000,000,000,000 e 0.013 Ah
14 mAh 50.4 C 50,400 mC 50,400,000 μC 50,400,000,000 nC 50,400,000,000,000 pC 151,095,167,997 stC 5.04 abC 314,570,000,000,000,000,000 e 0.014 Ah
15 mAh 54 C 54,000 mC 54,000,000 μC 54,000,000,000 nC 54,000,000,000,000 pC 161,887,679,996 stC 5.4 abC 337,040,000,000,000,000,000 e 0.015 Ah
16 mAh 57.6 C 57,600 mC 57,600,000 μC 57,600,000,000 nC 57,600,000,000,000 pC 172,680,191,996 stC 5.76 abC 359,510,000,000,000,000,000 e 0.016 Ah
17 mAh 61.2 C 61,200 mC 61,200,000 μC 61,200,000,000 nC 61,200,000,000,000 pC 183,472,703,996 stC 6.12 abC 381,980,000,000,000,000,000 e 0.017 Ah
18 mAh 64.8 C 64,800 mC 64,800,000 μC 64,800,000,000 nC 64,800,000,000,000 pC 194,265,215,996 stC 6.48 abC 404,450,000,000,000,000,000 e 0.018 Ah
19 mAh 68.4 C 68,400 mC 68,400,000 μC 68,400,000,000 nC 68,400,000,000,000 pC 205,057,727,995 stC 6.84 abC 426,920,000,000,000,000,000 e 0.019 Ah
20 mAh 72 C 72,000 mC 72,000,000 μC 72,000,000,000 nC 72,000,000,000,000 pC 215,850,239,995 stC 7.2 abC 449,390,000,000,000,000,000 e 0.02 Ah

## Milliampere-Hour Conversion Calculators

You can also convert electric charge using one of our milliampere-hour converters below.

SI Units
Centimetre–Gram–Second Units
Other Units
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You might also find our other electrical calculators useful.

## References

1. Bureau International des Poids et Mesures, The International System of Units (SI), 9th edition, 2019, https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-EN.pdf
2. National Institute of Standards & Technology, Unit Conversion, https://www.nist.gov/pml/owm/metric-si/unit-conversion

## Other Electric Charge Units

SI Units
Centimetre–Gram–Second Units
Other Units