Milliampere is 0.001 ampere units.
Milliamperes to Microamperes Converter — mA to uA
Convert Milliampere (mA) to Microampere (uA) using the exact conversion factor (1 milliampere = 1,000 microampere). See the formula, worked examples, and conversion table.
Milliamperes to Microamperes converter
Converter
Electricity Converter
Convert electrical units by family and calculate voltage, current, resistance, power, and energy with context values.
Context values
Some unit families need one extra value for a physically accurate result.
Microampere is 0.000001 ampere units.
Result = input x 0.001 / 1e-6.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Milliamperes to Microamperes
Milliampere and Microampere both belong to the electricity family — voltage, current, resistance, power, or energy — units that show up constantly when working across the different standards used by household wiring (120V/240V depending on region), automotive electrical systems (12V/24V), and electronics design. Specifically: Milliampere is 0.001 ampere units, and microampere is 0.000001 ampere units.
Formula
microamperes = milliamperes × 1000
This factor comes from each unit's defined relationship to the category's base unit: 1 milliampere equals 0.001 base units, and 1 microampere equals 0.000001 base units, so dividing one by the other gives the direct milliampere-to-microampere factor of 1000.
Simple example
1 mA × 1000 = 1,000 uA
1 milliampere = 1,000 microamperes.
Real-world example
120 mA × 1000 = 120,000 uA
120 milliamperes = 120,000 microamperes.
Conversion table
| Milliampere (mA) | Microampere (uA) |
|---|---|
| 1 mA | 1,000 uA |
| 5 mA | 5,000 uA |
| 12 mA | 12,000 uA |
| 24 mA | 24,000 uA |
| 120 mA | 120,000 uA |
| 240 mA | 240,000 uA |
Reverse conversion: Microampere to Milliampere
1 uA × 0.001 = 0.001 mA
1 microampere = 0.001 milliamperes.
milliamperes = microamperes × 0.001
For a page dedicated to this direction, see Microampere to Milliampere.
Understanding the Milliampere (mA)
Milliampere is 0.001 ampere units.
Understanding the Microampere (uA)
Microampere is 0.000001 ampere units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many microamperes are in 1 milliampere?
1 milliampere equals 1,000 microamperes, using the exact defined conversion factor rather than an estimate.
How do I convert milliampere to microampere?
Multiply the milliampere value by 1000. The converter above does this instantly to whatever precision you set.
How do I convert microampere back to milliampere?
Use the reverse factor: 1 microampere equals 0.001 milliamperes. You can also use the swap control in the converter above to flip the direction instantly.
What is a milliampere?
Milliampere (mA) is a unit of electricity.
What is a microampere?
Microampere (uA) is a unit of electricity.
Is the milliampere to microampere conversion exact?
Yes. Both milliampere and microampere are defined by fixed standards rather than physical artifacts, so the factor of 1000 used above is exact to as many digits as you choose to display.
What's the difference between voltage, current, and resistance?
Voltage (volts) is the electrical potential difference driving current through a circuit. Current (amperes) is the rate of flow of electric charge. Resistance (ohms) is how much a component opposes that flow. They're related by Ohm's law (V = I × R), but they are distinct physical quantities, and this page converts between units of just one of them.