Convert ampere to milliampere

Ampere

The ampere (symbol: A) is the SI base unit of electric current. It is defined as the flow of exactly 6.241509074×10¹⁸ elementary charges per second. Named after André-Marie Ampère, it is one of the seven SI base units.

Milliampere

The milliampere (symbol: mA) is equal to 0.001 amperes. It is the standard unit for small electronic circuits, sensors, and biological safety thresholds (60 mA can be lethal to humans).

Ampere to Milliampere conversion table

Ampere	Milliampere	Milliampere	Ampere
1	1000	1	0.001
2	2000	2	0.002
3	3000	3	0.003
5	5000	5	0.005
10	10000	10	0.01
20	20000	20	0.02
25	25000	25	0.025
50	50000	50	0.05
100	100000	100	0.1
250	250000	250	0.25
500	500000	500	0.5
1000	1E+06	1000	1

How to convert Ampere to Milliampere

1 A = 1000 mA. To convert any value, multiply it by 1000. For example, 25 A = 25000 mA.

Frequently asked questions

How many mA are there in one A?: One A is equal to 1000 mA.
How do you convert Ampere to Milliampere?: Multiply the value in Ampere by 1000 to get the result in Milliampere.
How much is 25 A in mA?: 25 A is equal to 25000 mA.
How do you convert Milliampere back to Ampere?: Divide by the same factor: multiply the value in Milliampere by 0.001 to get Ampere.