Convert between different units quickly and accurately in a modern way
Choose a Measurement
Select a measurement and convert between different units
Multiple conversions
To convert from Milliampere (mA) to Ampere (A), use the following formula:
To convert from Milliampere (mA) to Microampere (μA), use the following formula:
To convert from Milliampere (mA) to Kiloampere (kA), use the following formula:
To convert from Milliampere (mA) to Megaampere (MA), use the following formula:
A milliampere (mA) is a crucial unit used to measure small amounts of electrical current.
Think of electrical current like the flow of water through a pipe. If a large pipe represents an ampere (A)—the standard unit for current—then a milliampere would be the tiny trickle of water flowing through a drinking straw.
It is part of the International System of Units (SI) and is equal to one-thousandth of an ampere.
1 A = 1,000 mA.
The milliampere is a standard submultiple of the ampere, the base unit for electrical current.
The prefix "milli" signifies one-thousandth (10-3).
This standardized measurement ensures that engineers, scientists, and technicians worldwide are using consistent values for measuring electricity.
Because a milliampere represents a very small amount of current, it is the perfect unit for measuring the power consumption of everyday small electronics.
You'll see mA used to describe the electricity needed for: