Amperes to Milliamperes (A to mA)
Free online ampere to milliampere converter. Type a value, get an instant exact result — plus the formula, a ready-made conversion table, and reverse conversion.
ELECTRIC CURRENT CONVERTER — INSTANT RESULT
Formula: multiply the ampere value by 1,000 — i.e. mA = A × 1,000
Quick check: 1 A = 1,000 mA
Quick check: 1 A = 1,000 mA
Amperes to Milliamperes conversion table
| Amperes (A) | Milliamperes (mA) |
|---|---|
| 1 A | 1,000 mA |
| 2 A | 2,000 mA |
| 3 A | 3,000 mA |
| 4 A | 4,000 mA |
| 5 A | 5,000 mA |
| 6 A | 6,000 mA |
| 7 A | 7,000 mA |
| 8 A | 8,000 mA |
| 9 A | 9,000 mA |
| 10 A | 10,000 mA |
| 15 A | 15,000 mA |
| 20 A | 20,000 mA |
| 25 A | 25,000 mA |
| 30 A | 30,000 mA |
| 40 A | 40,000 mA |
| 50 A | 50,000 mA |
| 75 A | 75,000 mA |
| 100 A | 100,000 mA |
| 250 A | 250,000 mA |
| 500 A | 500,000 mA |
| 1,000 A | 1,000,000 mA |
How to convert amperes to milliamperes
To convert amperes to milliamperes, multiply the amount in amperes by 1,000. For example, 10 A = 10,000 mA. To convert in the other direction, divide by the same factor, or use the ⇄ swap button above.
Convert electric current between amperes, milliamperes and CGS units. The ampere is the SI base unit of electric current.
Frequently asked questions
How many milliamperes are in one ampere?
One ampere is exactly 1,000 milliamperes.
How do I convert A to mA?
Multiply the A value by 1,000 to get mA. The converter at the top of this page does this automatically and works in both directions.
How much is 100 amperes in milliamperes?
100 amperes equals 100,000 milliamperes.