Electric current converter
Convert mA to µA — milliampere to microampere
Convert milliamperes (mA) to microamperes (µA) instantly. 1 mA = 1,000 µA. Free calculator with formula, conversion table, and A base-unit equivalent.
Also searched as: mA to uA, milli ampere to micro ampere, milli to micro ampere, milli amp to micro amp, milli amps to micro amps.
- Scientific Notation
- 3.3 × 10³ µA
- Real-World Context
- 1 mA is roughly the current powering a small LED
- Step-by-Step
- 1. Start with 3.3 mA. 2. Since 1 milli-unit = 1,000 micro-units, multiply by 1,000. 3. 3.3 × 1,000 = 3,300 µA.
- Formula Used
- × 1,000 (milli = 10⁻³, micro = 10⁻⁶)
Quick Conversions
| Mega | 3.3 × 10⁻⁹ MA |
|---|---|
| Kilo | 0.0000033 kA |
| Base Unit (amperes) | 0.0033 amperes |
| Nano | 3,300,000 nA |
| Pico | 3.3 × 10⁹ pA |
Quick mA to µA answer
1 mA = 1,000 µA
multiply by 1,000
3.3 mA = 3,300 µA
milliampere to microampere formula
Milli is 10^-3 and micro is 10^-6. They are three powers of ten apart, so every mA to µA conversion uses the exact factor 1,000.
µA = mA × 1,000
3.3 mA × 1,000 = 3,300 µAmA to µA table
Common values for milliamperes converted to microamperesand the base unit (A).
| milliamperes | microamperes | amperes |
|---|---|---|
| 0.001 mA | 1 µA | 0.000001 A |
| 0.01 mA | 10 µA | 0.00001 A |
| 0.1 mA | 100 µA | 0.0001 A |
| 1 mA | 1,000 µA | 0.001 A |
| 2 mA | 2,000 µA | 0.002 A |
| 5 mA | 5,000 µA | 0.005 A |
| 10 mA | 10,000 µA | 0.01 A |
| 20 mA | 20,000 µA | 0.02 A |
| 50 mA | 50,000 µA | 0.05 A |
| 100 mA | 100,000 µA | 0.1 A |
| 1,000 mA | 1,000,000 µA | 1 A |
Understanding milliamperes and microamperes
A milliampere (mA) is 10⁻³ of the base unit (ampere) and a microampere (µA) is 10⁻⁶. They sit three powers of ten apart, so going from mA to µA means multiplying by exactly 1,000 — move the decimal point three places to the right.
Milliamperes describe currents you can measure with an ordinary bench multimeter: LED drive, relay coils, an MCU running flat out, USB budgets. Battery capacity is quoted in mAh for the same reason — the numbers land between 1 and 1000 without decimals.
This calculator shifts the decimal exponent rather than multiplying in binary floating point, so 3.3 mA returns exactly 3,300 µA — not a value with a trailing rounding error.
Common mA to µA mistake
Sleep-current budgets get blown by summing µA figures while ignoring one mA-scale item — a single pull-up resistor or an always-on LDO quiescent current will dominate everything else on the list.
When to use mA vs µA
milliamperes and microamperes are used for sensor draw, standby power, leakage current, battery drain, and low-power electronics. Use the larger milli unit when the number becomes easier to scan, and the smaller micro unit when you need finer detail.