Quick reference table
Common electric current conversions
| From | To |
|---|---|
| 1 A | 1 mA |
| 1 mA | 0.001 A |
| 1 µA | 0.001 mA |
| 1 kA | 1,000 A |
| 1 mA | 1 µA |
How to convert electric current
Electric current is measured in amperes. Household circuits are rated in amps, while sensors and chips draw milliamps or microamps.
Every electric current unit is a fixed multiple of one base unit, the A. To convert a value, multiply it by the size of the starting unit and divide by the size of the target unit. For example, to convert A to mA, multiply by 1. To go the other way, divide by 1.
The converter above does this for you and shows the exact formula under the result.
Worked examples
Amperes to Milliamperes
| Amperes (A) | Milliamperes (mA) |
|---|---|
| 1 A | 1 mA |
| 2 A | 2 mA |
| 5 A | 5 mA |
| 10 A | 1 mA |
| 25 A | 25 mA |
| 50 A | 5 mA |
| 100 A | 1 mA |
| 1,000 A | 1 mA |
Milliamperes to Amperes
| Milliamperes (mA) | Amperes (A) |
|---|---|
| 1 mA | 0.001 A |
| 2 mA | 0.002 A |
| 5 mA | 0.005 A |
| 10 mA | 0.010 A |
| 25 mA | 0.025 A |
| 50 mA | 0.050 A |
| 100 mA | 0.100 A |
| 1,000 mA | 1.000 A |
Electric current units explained
| Unit | Symbol | Equals |
|---|---|---|
| Nanoamperes | nA | 1 nA = 1 × 10⁻⁹ A |
| Microamperes | µA | 1 µA = 0.000001 A |
| Milliamperes | mA | 1 mA = 0.001 A |
| Amperes | A | 1 A = 1 A |
| Kiloamperes | kA | 1 kA = 1,000 A |
| Megaamperes | MA | 1 MA = 1,000,000 A |
| Abamperes | abA | 1 abA = 10 A |
| Statamperes | statA | 1 statA = 3.335641 × 10⁻¹⁰ A |
Popular conversions: amps to milliamps, ma to a.
Frequently asked questions
How many milliamps are in an amp?
There are 1,000 milliamperes (mA) in one ampere (A).
How do I convert A to mA?
Multiply the value in A by 1 to get mA. For example, 10 A = 1 mA.
How many mA is 1 A?
1 A = 1 mA, and 1 mA = 0.001 A.
Does this electric current converter work offline?
Yes. After the page has loaded once, all calculations run in your browser, so it keeps working without an internet connection.