Convert Milliampere to Ampere
Live bidirectional calculator for Milliamperes (mA) and Amperes (A) with verified formula and conversion charts.
Electric Current6 units
How the Calculation Works (Linear Scaling)
Since 1 Ampere = 1000 Milliamperes, divide the value in Milliamperes by 1000.
Milliampere to Ampere Conversion Table
Precomputed values for quick reference and printing.
| Milliampere | Ampere |
|---|---|
| 1 mA | 0.001 A |
| 2 mA | 0.002 A |
| 3 mA | 0.003 A |
| 4 mA | 0.004 A |
| 5 mA | 0.005 A |
| 6 mA | 0.006 A |
| 7 mA | 0.007 A |
| 8 mA | 0.008 A |
| 9 mA | 0.009 A |
| 10 mA | 0.01 A |
| 15 mA | 0.015 A |
| 20 mA | 0.02 A |
| 25 mA | 0.025 A |
| 30 mA | 0.03 A |
| 40 mA | 0.04 A |
| 50 mA | 0.05 A |
| 75 mA | 0.075 A |
| 100 mA | 0.1 A |
| Ampere | Milliampere |
|---|---|
| 1 A | 1000 mA |
| 2 A | 2000 mA |
| 3 A | 3000 mA |
| 4 A | 4000 mA |
| 5 A | 5000 mA |
| 6 A | 6000 mA |
| 7 A | 7000 mA |
| 8 A | 8000 mA |
| 9 A | 9000 mA |
| 10 A | 10000 mA |
| 15 A | 15000 mA |
| 20 A | 20000 mA |
| 25 A | 25000 mA |
| 30 A | 30000 mA |
| 40 A | 40000 mA |
| 50 A | 50000 mA |
| 75 A | 75000 mA |
| 100 A | 100000 mA |
π Standard Benchmark Reference Values
Fundamental SI decimal current subdivision.
Exact RatioAbout Milliampere (mA)
Metric submultiple of electric current equal to one thousandth of an ampere (10β»Β³ A).
History: Standard prefix definition for low-power electronic and biomedical current measurements.
Common Uses: Semiconductor circuits, LED forward current, sensor loop signals (4β20 mA), and biomedical currents.
About Ampere (A)
The SI base unit of electric current, defined by taking the fixed numerical value of the elementary charge e to be 1.602176634 Γ 10β»ΒΉβΉ C (1 A = 1 C/s).
History: Named after André-Marie Ampère, French physicist who founded the science of classical electromagnetism.
Common Uses: Household electrical circuit ratings, industrial power distribution, and electronics power consumption.
β Frequently Asked Questions
How many Amperes are in 1 Milliampere?
There are exactly 0.001 Amperes in 1 Milliampere (1 mA = 0.001 A).
What is the formula to convert Milliampere to Ampere?
The formula is: Ampere = Milliampere / 1000. Since 1 Ampere = 1000 Milliamperes, divide the value in Milliamperes by 1000.
How do I convert 1 mA to A manually?
To convert 1 mA to A: apply the formula Ampere = Milliampere / 1000. Substituting gives: 1 / 1000 = 0.001 A.