Convert Milliamperes to Amperes

Enter the electric current in milliamperes below to get the value converted to amperes.

Results in Amperes:
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1 mA = 0.001 A

How to Convert Milliamperes to Amperes

conversion scale showing milliamperes and equivalent amperes electric current values

To convert a milliampere measurement to a ampere measurement, multiply the electric current by the conversion ratio. One milliampere is equal to 0.001 amperes, so use this simple formula to convert:

amperes = milliamperes × 0.001

The electric current in amperes is equal to the milliamperes multiplied by 0.001.

For example, here's how to convert 5 milliamperes to amperes using the formula above.
5 mA = (5 × 0.001) = 0.005 A

Milliamperes and amperes are both units used to measure electric current. Keep reading to learn more about each unit of measure.


One milliampere is equal to 1/1,000 of an ampere, which is the electrical current equal to the flow of one coulomb per second.

The milliampere is a multiple of the ampere, which is the SI base unit for electric current. In the metric system, "milli" is the prefix for 10-3. A milliampere is sometimes also referred to as a milliamp. Milliamperes can be abbreviated as mA, for example 1 milliampere can be written as 1 mA.


The ampere, commonly referred to as just "amp," is the electrical current constant equal to the flow of one coulomb per second. According to an SI brochure, the ampere is a constant current that when passsed through two straight and parallel conductors that are spaced one meter apart, will produce a force equal to 0.0000002 newtons per meter of length.

The ampere is the SI base unit for electric current in the metric system. A ampere is sometimes also referred to as an amp. Amperes can be abbreviated as A, for example 1 ampere can be written as 1 A.

Ohm's Law states the current between two points on a conductor is proportional to the voltage and inversely proportional to the resistance. Using Ohm's Law, it's possible to express the current in amperes as an expression using resistance and voltage.


The current in amperes is equal to the potential difference in volts divided by the resistance in ohms.

Milliampere Measurements and Equivalent Ampere Conversions

Common milliampere values converted to the equivalent ampere value
Milliamperes Amperes
1 mA 0.001 A
2 mA 0.002 A
3 mA 0.003 A
4 mA 0.004 A
5 mA 0.005 A
6 mA 0.006 A
7 mA 0.007 A
8 mA 0.008 A
9 mA 0.009 A
10 mA 0.01 A
11 mA 0.011 A
12 mA 0.012 A
13 mA 0.013 A
14 mA 0.014 A
15 mA 0.015 A
16 mA 0.016 A
17 mA 0.017 A
18 mA 0.018 A
19 mA 0.019 A
20 mA 0.02 A
21 mA 0.021 A
22 mA 0.022 A
23 mA 0.023 A
24 mA 0.024 A
25 mA 0.025 A
26 mA 0.026 A
27 mA 0.027 A
28 mA 0.028 A
29 mA 0.029 A
30 mA 0.03 A
31 mA 0.031 A
32 mA 0.032 A
33 mA 0.033 A
34 mA 0.034 A
35 mA 0.035 A
36 mA 0.036 A
37 mA 0.037 A
38 mA 0.038 A
39 mA 0.039 A
40 mA 0.04 A

More Milliampere Electric Current Conversions

SI Units
Convert to Kiloamperes
1 mA is equal to 1.0E-6 kiloamperes
Convert to Megaamperes
1 mA is equal to 1.0E-9 megaamperes
Centimetre–Gram–Second Units
Convert to Biots
1 mA is equal to 0.0001 biots
Convert to Abamperes
1 mA is equal to 0.0001 abamperes
Convert to Statamperes
1 mA is equal to 299,792.5 statamperes
Other Units
Convert to Coulombs Per Second
1 mA is equal to 0.001 coulombs per second