Convert Microampere-hours to Coulombs
Convert Microampere-hours (µAh) to Coulombs (C) instantly and accurately.
Conversion Formula
C = µAh × 0.0036
About Microampere-hours
The microampere-hour (µAh) equals exactly 3.6 mC (= 10⁻⁶ A × 3 600 s), a practical capacity unit for ultra-low-power wireless sensors and IoT devices. Bluetooth Low Energy (BLE) beacons typically consume 1-10 µAh per advertising event; coin-cell RTC circuits track self-discharge in µAh per month. 1 µAh = 10⁻³ mAh = 3.6 mC.
About Coulombs
The coulomb (C) is the SI derived unit of electric charge, equal to the charge transported by a current of 1 A in 1 s. In the 2019 SI revision it is fixed exactly via the elementary charge: 1 C = 1 / (1.602 176 634 × 10⁻¹⁹) e ≈ 6.241 × 10¹⁸ e. Practical benchmarks: a 1 Ah battery stores 3 600 C; a lightning bolt transfers 1-20 C.
Quick Reference Table
| Microampere-hours (µAh) | Coulombs (C) |
|---|---|
| 1 µAh | 0.0036 C |
| 2 µAh | 0.0072 C |
| 5 µAh | 0.018 C |
| 10 µAh | 0.036 C |
| 25 µAh | 0.09 C |
| 50 µAh | 0.18 C |
| 100 µAh | 0.36 C |