Milliampere to Ampere Converter
Free Electric Current Converter, Convert Amperes, Milliamperes, Microamperes & Kiloamperes
Milliampere
- Symbol
- mA
- System
- Metric/Imperial
- Dimension
- Various
Ampere
- Symbol
- A
- System
- Metric/Imperial
- Dimension
- Various
Quick Reference Table
| Milliampere | Ampere | Ampere | Milliampere |
|---|---|---|---|
| 1 | 0.001 | 1 | 1000 |
| 2 | 0.002 | 2 | 2000 |
| 3 | 0.003 | 3 | 3000 |
| 5 | 0.005 | 5 | 5000 |
| 10 | 0.01 | 10 | 10000 |
| 25 | 0.025 | 25 | 25000 |
| 50 | 0.05 | 50 | 50000 |
| 100 | 0.1 | 100 | 100000 |
| 500 | 0.5 | 500 | 500000 |
| 1000 | 1 | 1000 | 1000000 |
Conversion Formula
Ampere = Milliampere × 0.001
Milliampere = Ampere × 1000
Factors are from BIPM SI brochure and NIST SP 811, stored unrounded and computed via a base unit. Reverse factor is 1 ÷ 0.001.
How to convert Milliampere to Ampere
Multiply the value in milliampere by 0.001 to get ampere. For example, 5 Milliampere = 0.005 Ampere. All results in the electric current converter update instantly as you type, so you can see every unit at once without manual math.
Common mistakes
Do not round the factor to 0.00 too early — keep full precision until the final display. For electric current, always verify critical calculations (medicine, engineering) with a second source.
FAQ
- How many Ampere in 1 Milliampere?
- 1 Milliampere = 0.001 Ampere.
- How many Milliampere in 1 Ampere?
- 1 Ampere = 1000 Milliampere.
- What is the source?
- BIPM/NIST via OmniConverter base-unit engine. Source table and formula above are exact.
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