Use our interactive calculator to easily convert amps to milliamps (A to mA).
Amps to Milliamps Conversion Calculator
Or would you rather convert milliamps to amps?
Amps to Milliamps Conversion Chart
Here is a conversion chart converting common values of amps to milliamps.
|Amps (A)||Milliamps (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|
|0.25 A||250 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|
|0.75 A||750 mA|
|0.8 A||800 mA|
|0.9 A||900 mA|
|1 A||1000 mA|
|2 A||2000 mA|
|3 A||3000 mA|
|4 A||4000 mA|
|5 A||5000 mA|
Note: Don't see the values you're looking for in this chart? Use our amps to milliamps conversion calculator at the top of this page to calculate them for your specific scenario.
How to Convert Amps to Milliamps (A to mA)
There are 1000 milliamps in 1 amp, just like how there are 1000 millimeters in 1 meter.
So, to convert amps to milliamps, just multiply amps times 1000.
Conversion formula: milliamps = amps × 1000
Abbreviated: mA = A × 1000
A while back I made my own solar phone charger and used a USB power meter to measure its output. When I did, I got a result of 0.46 amps.
Here's how to convert this number to milliamps:
0.46 A × 1000 = 460 mA
So, in this example, my solar charger was outputting a current of 460 milliamps.
How to Convert Milliamps to Amps (mA to A)
Need to convert the other way?
To convert milliamps to amps, divide amps by 1000.
Conversion formula: amps = milliamps ÷ 1000
Abbreviated: A = mA ÷ 1000
Let's say you use have some LED string lights. You look at the label on the lights and see that they consume 100 milliamps.
Here's how to convert this number to amps:
100 mA ÷ 1000 = 0.1 A
So, in this example, your lights consume 0.1 amps of current when on.
What Is an Amp?
The ampere -- often shortened to amp -- is the SI base unit of electrical current. Electrical current is a count of the number of charged particles flowing through a conductor.
Ampere is abbreviated A. So, 1 ampere can be written as 1 A.
What Is a Milliamp?
A milliampere -- often shortened to milliamp -- is a submultiple of the ampere equivalent to one thousandth of an ampere (10-3 A or 0.001 A).
Milliampere is abbreviated mA. So, 1 milliampere can be written as 1 mA.