Authoritative definitions of the International System of Units and SI prefixes.
Dedicated unit pair
Microamperes to Milliamperes
Convert µA to mA instantly, then review the formula, assumptions, and rounding guidance.
Electrical unitsInstant result
Decimals
Formula result = input × 0.000001 ÷ 0.001. 1 µA = 0.001 mA
Common examples
One value, several units
Amperes0 A
Milliamperes0.001 mA
Kiloamperes0 kA
Conversion table
| µA | mA |
|---|---|
| 1 µA | 0.001 mA |
| 2 µA | 0.002 mA |
| 5 µA | 0.005 mA |
| 10 µA | 0.01 mA |
| 25 µA | 0.025 mA |
| 50 µA | 0.05 mA |
| 100 µA | 0.1 mA |
Conversion chart
1 µA0.001 mA
5 µA0.005 mA
10 µA0.01 mA
25 µA0.025 mA
50 µA0.05 mA
Worked example
1 ampere equals 1,000 milliamperes.
Unit definition
Microamperes (µA) One microamperes equals 0.000001 ampere.
Unit history
Microamperes is represented here using its modern SI definition or an internationally accepted relationship to an SI base unit.
Step by step
1. Parse the value, including fractions.
2. Convert µA to ampere.
3. Convert the base value to mA and apply your display precision.
Understand the result before using it
Microamperes to Milliamperes converts a value measured in Microamperes (µA) into the equivalent value in Milliamperes (mA). The numerical value changes because the size and definition of the selected unit changes; the underlying quantity does not.
Calculated result
The conversion follows the displayed unit relationship. Display rounding can hide additional digits, and measured inputs cannot become more accurate merely by changing units.
Formula, assumptions, and example
Formula
result = input × 0.000001 ÷ 0.001
Assumptions
- Microamperes and Milliamperes represent the same current quantity.
- The input is expressed in µA; the output is expressed in mA.
- The unit definitions and conventional relationship shown on this page apply.
Worked example
1 µA = 0.001 mA. For another value, apply the same relationship and round only to the precision your source measurement supports.
When to use it
Good uses
- Read a µA measurement in a document that expects mA.
- Compare a microamperes value with a value reported in milliamperes.
- Check the µA-to-mA arithmetic before copying the result into another calculation.
Limitations
Common mistakes to avoid
- Do not confuse µA with another unit that has a similar name or symbol.
- Round the output to a precision justified by the original measurement.
- Verify safety-critical, regulated, laboratory, and contractual conversions against the controlling standard.
Sources and further reading
These references explain the underlying standards or provide authoritative context. Your own contract, institution, clinician, product documentation, local code, or governing standard may be the controlling source.
Guidance on unit names, symbols, conversions, and numerical presentation.
Questions about this calculation
How do I convert Microamperes to Milliamperes?
result = input × 0.000001 ÷ 0.001 Using the displayed relationship, 1 µA equals 0.001 mA.
How many Milliamperes are in one Microamperes?
One Microamperes is 0.001 Milliamperes. The displayed digits may be rounded.
Can I reverse the µA to mA conversion?
Yes. Swap the source and target units in the converter. The reverse relationship converts mA back to µA.
Is the Microamperes to Milliamperes result exact?
The conversion follows the displayed unit relationship. Display rounding can hide additional digits, and measured inputs cannot become more accurate merely by changing units.