Milliampere-Hours to Coulombs Converter

Enter the electric charge in milliampere-hours below to get the value converted to coulombs.


Result in Coulombs:

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1 mAh = 3.6 C

Do you want to convert coulombs to milliampere-hours?

How to Convert Milliampere-Hours to Coulombs

To convert a measurement in milliampere-hours to a measurement in coulombs, multiply the electric charge by the following conversion ratio: 3.6 coulombs/milliampere-hour.

Since one milliampere-hour is equal to 3.6 coulombs, you can use this simple formula to convert:

coulombs = milliampere-hours × 3.6

The electric charge in coulombs is equal to the electric charge in milliampere-hours multiplied by 3.6.

For example, here's how to convert 5 milliampere-hours to coulombs using the formula above.
coulombs = (5 mAh × 3.6) = 18 C

How Many Coulombs Are in a Milliampere-Hour?

There are 3.6 coulombs in a milliampere-hour, which is why we use this value in the formula above.

1 mAh = 3.6 C

Milliampere-hours and coulombs are both units used to measure electric charge. Keep reading to learn more about each unit of measure.

What 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.

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]

Learn more about milliampere-hours.

What Is a Coulomb?

One coulomb is the electric charge equal to one ampere of current over one second.[1]

The coulomb can be expressed as QC = IA × ts

The charge in coulombs is equal to the current in amperes times the time in seconds.

The coulomb is the SI derived unit for electric charge in the metric system. Coulombs can be abbreviated as C; for example, 1 coulomb can be written as 1 C.

Learn more about coulombs.

Milliampere-Hour to Coulomb Conversion Table

Table showing various milliampere-hour measurements converted to coulombs.
Milliampere-hours Coulombs
1 mAh 3.6 C
2 mAh 7.2 C
3 mAh 10.8 C
4 mAh 14.4 C
5 mAh 18 C
6 mAh 21.6 C
7 mAh 25.2 C
8 mAh 28.8 C
9 mAh 32.4 C
10 mAh 36 C
11 mAh 39.6 C
12 mAh 43.2 C
13 mAh 46.8 C
14 mAh 50.4 C
15 mAh 54 C
16 mAh 57.6 C
17 mAh 61.2 C
18 mAh 64.8 C
19 mAh 68.4 C
20 mAh 72 C
21 mAh 75.6 C
22 mAh 79.2 C
23 mAh 82.8 C
24 mAh 86.4 C
25 mAh 90 C
26 mAh 93.6 C
27 mAh 97.2 C
28 mAh 100.8 C
29 mAh 104.4 C
30 mAh 108 C
31 mAh 111.6 C
32 mAh 115.2 C
33 mAh 118.8 C
34 mAh 122.4 C
35 mAh 126 C
36 mAh 129.6 C
37 mAh 133.2 C
38 mAh 136.8 C
39 mAh 140.4 C
40 mAh 144 C


  1. Bureau International des Poids et Mesures, The International System of Units (SI), 9th edition, 2019,

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