Milliampere (mA)
The milliampere (mA) equals 0.001 ampere — the everyday unit on battery labels, LED specs, and low-power electronics.
Milliamperes appear on coin-cell datasheets, USB charging labels, and sensor current-draw specifications.
Milliampere to Ampere
Convert milliampere to ampere instantly. Type in either field — results update live.
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current Milliampere Ampere
1 milliampere = 0.001 amperes
Unit
Unit
Conversion table
Selected mA values converted to A using the exact factor from this tool.
| mA | A |
|---|---|
| 0.01 | 0.00001 |
| 0.1 | 0.0001 |
| 1 | 0.001 |
| 2 | 0.002 |
| 3 | 0.003 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 50 | 0.05 |
| 100 | 0.1 |
| 1,000 | 1 |
How to convert
Exact conversion factors in both directions, plus a worked example.
1 mA = 0.001 A
1 A = 1000 mA
To convert milliampere to ampere, multiply by 0.001.
To convert ampere to milliampere, multiply by 1000.
Example: convert 10 mA to A
10 × 0.001 = 0.01 A
About these units
Short background on the units used in this conversion.
Ampere (A)
The ampere (A) is the SI base unit of electric current — one coulomb of charge passing a point per second.
Amperes quantify circuit current, fuse ratings, charger output, and any flow of electric charge in conductors.
Frequently asked questions
How many amperes are in one milliampere?
One milliampere equals 0.001 amperes. Multiply your milliamperes value by 0.001 to convert to amperes.
What is the conversion formula?
A = mA × 0.001The reverse is
mA = A × 1,000, using the same exact factors as this converter.Is this Milliampere to Ampere converter private?
Yes. All calculations run locally in your browser. Nothing you type is sent to a server.