Milliampere-Hours to Coulombs Conversion (mAh to C)

Milliampere-Hours to Coulombs Converter

Enter the electric charge in milliampere-hours below to convert it to coulombs.

Result in Coulombs:

1 mAh = 3.6 C

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 Q_C = I_A × t_s

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

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

References

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