Millicoulombs to Ampere-Hours Converter

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


Result in Ampere-Hours:

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

Do you want to convert ampere-hours to millicoulombs?

How to Convert Millicoulombs to Ampere-Hours

To convert a measurement in millicoulombs to a measurement in ampere-hours, divide the electric charge by the following conversion ratio: 3,600,000 millicoulombs/ampere-hour.

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 electric charge in millicoulombs divided by 3,600,000.

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

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

What Is a Millicoulomb?

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 thousandths, or 10-3. Millicoulombs can be abbreviated as mC; for example, 1 millicoulomb can be written as 1 mC.

Learn more about millicoulombs.

What Is an Ampere-Hour?

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.[1]

Learn more about ampere-hours.

Millicoulomb to Ampere-Hour Conversion Table

Table showing various 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


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

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