# Millicoulombs to Ampere-hours Conversion

Enter the electric charge in millicoulombs below to get the value converted to ampere-hours.

Results in Ampere-hours: 1 mC = 2.7778E-7 Ah
Hint: use a scientific notation calculator to convert E notation to decimal

## How to Convert Millicoulombs to Ampere-hours

To convert a millicoulomb measurement to an ampere-hour measurement, divide the electric charge by the conversion ratio.

Since one ampere-hour is equal to 3,600,000 millicoulombs, you can use this simple formula to convert:

ampere-hours = millicoulombs ÷ 3,600,000

The electric charge in ampere-hours is equal to the millicoulombs divided by 3,600,000.

For example, here's how to convert 5,000,000 millicoulombs to ampere-hours using the formula above.
5,000,000 mC = (5,000,000 ÷ 3,600,000) = 1.388889 Ah

## Millicoulombs

The millicoulomb is 1/1,000 of a coulomb, which is the electric charge equal to one ampere of current over one second.

The millicoulomb is a multiple of the coulomb, which is the SI derived unit for electric charge. In the metric system, "milli" is the prefix for 10-3. Millicoulombs can be abbreviated as mC; for example, 1 millicoulomb can be written as 1 mC.

## Ampere-hours

One ampere-hour is the electric charge equal to the charge conveyed by a current of one ampere for one hour. One ampere-hour is equal to 3,600 coulombs.

The ampere-hour is a non-SI metric unit for electric charge. An ampere-hour is sometimes also referred to as an amp-hour. Ampere-hours are usually abbreviated as Ah, although the formally adopted expression is A·h. The abbreviation A h is also sometimes used. For example, 1 ampere-hour can be written as 1 Ah, 1 A·h, or 1 A 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.

## Millicoulomb to Ampere-hour Conversion Table

Millicoulomb measurements converted to ampere-hours
Millicoulombs Ampere-hours
1 mC 0.00000027778 Ah
2 mC 0.00000055556 Ah
3 mC 0.00000083333 Ah
4 mC 0.0000011111 Ah
5 mC 0.0000013889 Ah
6 mC 0.0000016667 Ah
7 mC 0.0000019444 Ah
8 mC 0.0000022222 Ah
9 mC 0.0000025 Ah
10 mC 0.0000027778 Ah
100 mC 0.000027778 Ah
1,000 mC 0.000278 Ah
10,000 mC 0.002778 Ah
100,000 mC 0.027778 Ah
1,000,000 mC 0.277778 Ah
10,000,000 mC 2.7778 Ah

## 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