Convert Amperes to Microamperes
Convert Amperes (A) to Microamperes (µA) instantly and accurately.
Conversion Formula
µA = A × 1000000
About Amperes
The ampere (A) is the SI base unit of electric current, defined since 2019 by fixing the elementary charge e = 1.602 176 634 × 10⁻¹⁹ C. One ampere corresponds to approximately 6.241 × 10¹⁸ electrons passing a cross-section per second. Common benchmarks: a 60 W incandescent lamp draws 0.5 A at 120 V; household circuit breakers protect at 10-30 A; a car starter motor draws 100-200 A on cranking.
About Microamperes
The microampere (µA) equals 10⁻⁶ A, common in low-power sensor circuits, analogue signal conditioning, and bioelectrical measurement. Surface ECG electrodes record body currents of 1-100 µA; a 1 mW signal at 5 V draws 200 µA; modern low-power microcontrollers sleep at 1-10 µA, enabling coin-cell operation for months or years. 1 µA = 10⁻³ mA = 10³ nA.
Quick Reference Table
| Amperes (A) | Microamperes (µA) |
|---|---|
| 1 A | 1000000 µA |
| 2 A | 2000000 µA |
| 5 A | 5000000 µA |
| 10 A | 10000000 µA |
| 25 A | 25000000 µA |
| 50 A | 50000000 µA |
| 100 A | 100000000 µA |