# Milliampere-Hours to Ampere-Hours Converter

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

Results in Ampere-Hours: 1 mAh = 0.001 Ah

Do you want to convert ampere-hours to milliampere-hours?

## How to Convert Milliampere-Hours to Ampere-Hours

To convert a measurement in milliampere-hours to a measurement in ampere-hours, divide the electric charge by the following conversion ratio: 1,000 milliampere-hours/ampere-hour.

Since one ampere-hour is equal to 1,000 milliampere-hours, you can use this simple formula to convert:

ampere-hours = milliampere-hours ÷ 1,000

The electric charge in ampere-hours is equal to the electric charge in milliampere-hours divided by 1,000.

For example, here's how to convert 500 milliampere-hours to ampere-hours using the formula above.
ampere-hours = (500 mAh ÷ 1,000) = 0.5 Ah

## 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.

## 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.

## Milliampere-Hour to Ampere-Hour Conversion Table

Table showing various milliampere-hour measurements converted to ampere-hours.
Milliampere-hours Ampere-hours
1 mAh 0.001 Ah
2 mAh 0.002 Ah
3 mAh 0.003 Ah
4 mAh 0.004 Ah
5 mAh 0.005 Ah
6 mAh 0.006 Ah
7 mAh 0.007 Ah
8 mAh 0.008 Ah
9 mAh 0.009 Ah
10 mAh 0.01 Ah
20 mAh 0.02 Ah
30 mAh 0.03 Ah
40 mAh 0.04 Ah
50 mAh 0.05 Ah
60 mAh 0.06 Ah
70 mAh 0.07 Ah
80 mAh 0.08 Ah
90 mAh 0.09 Ah
100 mAh 0.1 Ah
200 mAh 0.2 Ah
300 mAh 0.3 Ah
400 mAh 0.4 Ah
500 mAh 0.5 Ah
600 mAh 0.6 Ah
700 mAh 0.7 Ah
800 mAh 0.8 Ah
900 mAh 0.9 Ah
1,000 mAh 1 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