Electric Charge Converter
Convert between Coulomb, millicoulomb, microcoulomb, ampere-hour, and milliampere-hour instantly.
Type in any field and the others update automatically.
Type in any field — the others update instantly.
All electric charge conversions use Coulombs (C) as the base unit.
Metric prefixes:
- 1 C = 1,000 mC (millicoulombs)
- 1 C = 1,000,000 µC (microcoulombs)
Ampere-hour units:
- 1 Ah = 3,600 C (1 Ampere for 1 hour)
- 1 mAh = 3.6 C
Common references:
- Smartphone battery: 3,000–5,000 mAh
- Car battery: 40–100 Ah
- Lightning bolt: about 5 C