Electrical
μAtomA
Convert microamperes (μA) to milliamperes (mA).
Factor1 μA = 0.001 mA
Converter
μA
Accepts numbers or expressions, e.g. 150 + 14.7
Result
mA
Rendered to 6 significant figures.
Formula
Formula
mA = μA × 0.001
Multiply any value in microamperes by 0.001 to obtain the value in milliamperes.
Worked example
Convert 1000 μA to mA.
- 01Start with 1000 μA.
- 02Multiply by the conversion factor: 1000 × 0.001 = 1 mA.
Result1000 μA = 1 mA
Conversion table
| μA | mA |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 50 | 0.05 |
| 100 | 0.1 |
| 200 | 0.2 |
| 500 | 0.5 |
| 1000 | 1 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from μA to mA?
1 μA equals 0.001 mA. To convert, multiply the value in microamperes by 0.001.
How do I convert 1 μA to mA?
1 μA = 0.001 mA. For any value, multiply by 0.001.
How do I convert mA back to μA?
Divide by the same factor — or equivalently, multiply by 1000. So 1 mA = 1000 μA.
When would I need to convert microampere to milliampere?
Current conversions between μA and mA appear in motor and cable sizing, instrumentation loop design (4–20 mA), battery characterisation and electronics. Amperes are standard for power circuits; milliamperes and microamperes are the working units for signal conditioning and sensor outputs.
Is the conversion exact?
Yes. Both μA and mA are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).