How do you convert milliamperes to amperes?
To convert milliamperes to amperes, divide the number of milliamperes by 1,000. 1 mA = 0.001 A.
Ampere = Milliampere ÷ 1,000
Milliamps in everyday electronics
Milli means one thousandth, so 1 mA = 0.001 A and 1 A = 1,000 mA. To convert, divide the milliamp value by 1,000: 250 mA = 0.25 A.
Small currents are usually written in milliamps: a standard indicator LED runs at about 10–20 mA, and a microcontroller pin is often limited to around 20–40 mA. Chargers and fuses are rated in amps, so a 2 A charger can supply 2,000 mA.
Battery capacity in mAh follows the same rule: a 5,000 mAh power bank stores 5 Ah of charge at its cell voltage.
Related tools
Milliamperes to amperes conversion table
| Milliamperes (mA) | Amperes (A) |
|---|---|
| 1 mA | 0.001 A |
| 5 mA | 0.005 A |
| 10 mA | 0.01 A |
| 20 mA | 0.02 A |
| 100 mA | 0.1 A |
| 500 mA | 0.5 A |
| 1,000 mA | 1 A |
What is Milliampere?
The milliampere is a small current unit equal to one thousandth of an ampere.
Short history of Milliampere
It became especially important in electronics and instrumentation where current levels are far below one ampere.
Open the Milliampere unit guideWhat is Ampere?
The ampere is the SI base unit of electric current.
Short history of Ampere
It became one of the core electrical standards used to quantify charge flow in circuits and systems.
Open the Ampere unit guideFrequently asked questions
What is 1 Milliampere in Ampere?
1 mA = 0.001 A.
How do you convert Milliampere to Ampere?
To convert milliamperes to amperes, divide the number of milliamperes by 1,000. 1 mA = 0.001 A.
Frequently asked questions
How many amperes are in 1 milliampere?
1 mA = 0.001 A.
How do you convert milliamperes to amperes?
To convert milliamperes to amperes, divide the number of milliamperes by 1,000. 1 mA = 0.001 A.
How many milliamperes are in 1 ampere?
1 A = 1,000 mA.