Amperes to Milliamperes Conversion
Enter the electric current in amperes below to get the value converted to milliamperes.
How to Convert Amperes to Milliamperes
To convert an ampere measurement to a milliampere measurement, multiply the electric current by the conversion ratio.
Since one ampere is equal to 1,000 milliamperes, you can use this simple formula to convert:
The electric current in milliamperes is equal to the amperes multiplied by 1,000.
How Many Milliamperes are in an Ampere?
There are 1,000 milliamperes in an ampere, which is why we use this value in the formula above.
1 A = 1,000 mA
Amperes and milliamperes are both units used to measure electric current. Keep reading to learn more about each unit of measure.
The ampere was previously defined as a constant current that when passed 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.
In 2019, the ampere was redefined as the electric current corresponding to the flow of 1/(1.602 176 634 × 10-19) elementary charges per second.
The ampere is the SI base unit for electric current in the metric system. An 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.
IA = VVRΩ
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.
Ampere to Milliampere Conversion Table
|0.001 A||1 mA|
|0.002 A||2 mA|
|0.003 A||3 mA|
|0.004 A||4 mA|
|0.005 A||5 mA|
|0.006 A||6 mA|
|0.007 A||7 mA|
|0.008 A||8 mA|
|0.009 A||9 mA|
|0.01 A||10 mA|
|0.02 A||20 mA|
|0.03 A||30 mA|
|0.04 A||40 mA|
|0.05 A||50 mA|
|0.06 A||60 mA|
|0.07 A||70 mA|
|0.08 A||80 mA|
|0.09 A||90 mA|
|0.1 A||100 mA|
|0.2 A||200 mA|
|0.3 A||300 mA|
|0.4 A||400 mA|
|0.5 A||500 mA|
|0.6 A||600 mA|
|0.7 A||700 mA|
|0.8 A||800 mA|
|0.9 A||900 mA|
|1 A||1,000 mA|
- International Bureau of Weights and Measures, The International System of Units, 9th Edition, 2019, https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-EN.pdf