Milliamperes to Amperes
Convert milliamperes to amperes instantly.
Milliamperes to Amperes (mA to A) Converter
1 milliampere = 0.001 amperes
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- 1 mA = 0.001 A
- 5 mA = 0.005 A
- 10 mA = 0.01 A
- 25 mA = 0.025 A
- AmperesA
- MilliamperesmA
- AmperesA
- MilliamperesmA
How it’s calculated
A = mA × 0.001
- Multiply the value in milliamperes by 0.001.
- To go back, divide by 0.001 (or multiply by 1000).
- 1 mA = 0.001 A · 1 A = 1,000 mA
Quick examples
1 milliampere = 0.001 amperes · 1 A = 1,000 mA
- 1 milliampere = 0.001 amperes
- 5 milliamperes = 0.005 amperes
- 10 milliamperes = 0.01 amperes
- 25 milliamperes = 0.025 amperes
- 100 milliamperes = 0.1 amperes
Milliamperes to amperes conversion table
| Milliamperes (mA) | Amperes (A) |
|---|---|
| 0.1 mA | 0.0001 A |
| 0.5 mA | 0.0005 A |
| 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 |
| 250 mA | 0.25 A |
| 500 mA | 0.5 A |
| 1,000 mA | 1 A |
About these units
Milliampere (mA)
SI (metric)
1 mA = 0.001 A (exact)
Source: BIPM SI Brochure (9th ed.) (SI prefixes and accepted units)
Ampere (A)
SI (metric)
Base unit
The SI base unit of electric current, defined using the charge of a single electron.
Source: BIPM SI Brochure (9th ed.)
Frequently asked questions
How do I convert milliamperes to amperes?
Use A = mA × 0.001. Multiply the value in milliamperes by 0.001.
How many amperes are in 1 milliampere?
1 milliampere (mA) equals 0.001 amperes (A).
How many milliamperes are in 1 ampere?
1 ampere (A) equals 1,000 milliamperes (mA).
What is 10 mA in A?
10 milliamperes = 0.01 amperes.
What is a ampere?
The SI base unit of electric current, defined using the charge of a single electron.
Related conversions
Formula: A = mA × 0.001. Factors last reviewed 2026-10-27.