Electric Charge Converter
Electric charge is the quantity of electricity that flows or is stored. The SI unit is the coulomb, one ampere flowing for one second. Battery capacity is quoted in ampere-hours or milliampere-hours, and electrochemistry uses the faraday, the charge on one mole of electrons.
15 units supported Base unit coulomb (C)
Multiply the number of coulombs by 0.000277777777778 to get ampere-hours. How this is calculated
About electric charge conversion
Electric Charge conversion is commonly needed when battery capacity, capacitor sizing, and electrochemistry. A milliampere-hour is a charge, not an energy — comparing batteries at different voltages needs watt-hours instead.
Popular conversions
Convert Coulomb to other electric charge units
1 C expressed in every other electric charge unit on this site.
- Coulomb C 1
- Megacoulomb MC 0.000001
- Kilocoulomb kC 0.001
- Millicoulomb mC 1,000
- Microcoulomb µC 1,000,000
- Nanocoulomb nC 1,000,000,000
- Picocoulomb pC 1,000,000,000,000
- Ampere-hour A·h 0.00027777778
- Milliampere-hour mA·h 0.27777778
- Ampere-minute A·min 0.016666667
- Ampere-second A·s 1
- Abcoulomb abC 0.1
- Statcoulomb statC 2,997,924,500
- Faraday F 0.00001036427
- Elementary Charge e 6.2415091e+18
Complete list of electric charge units
All 15 units this converter supports, each stated against the coulomb (C).
| Unit | Symbol | System | In coulombs | Conversions |
|---|---|---|---|---|
| Coulomb | C | SI | base unit (C) | coulombs to mahcoulombs to ah |
| Megacoulomb | MC | SI | 1 MC = 1,000,000 C | — |
| Kilocoulomb | kC | SI | 1 kC = 1,000 C | — |
| Millicoulomb | mC | SI | 1 mC = 0.001 C | — |
| Microcoulomb | µC | SI | 1 µC = 0.000001 C | — |
| Nanocoulomb | nC | SI | 1 nC = 1e-9 C | — |
| Picocoulomb | pC | SI | 1 pC = 1e-12 C | — |
| Ampere-hour | A·h | Other | 1 A·h = 3,600 C | ah to coulombs |
| Milliampere-hour | mA·h | Other | 1 mA·h = 3.6 C | mah to coulombs |
| Ampere-minute | A·min | Other | 1 A·min = 60 C | — |
| Ampere-second | A·s | SI | 1 A·s = 1 C | — |
| Abcoulomb | abC | Other | 1 abC = 10 C | — |
| Statcoulomb | statC | Other | 1 statC = 3.335641e-10 C | — |
| Faraday | F | Other | 1 F = 96,485.3321233 C | — |
| Elementary Charge | e | Other | 1 e = 1.602176634e-19 C | — |
No unit in this category matches that search.
Scroll the table sideways to see every column.
Frequently asked questions
What is the base unit for electric charge?
Electric Charge conversions on this site are calculated against the coulomb (C).
Which electric charge units can I convert?
You can convert between 15 units, including coulomb, megacoulomb, kilocoulomb, millicoulomb, and more.
Where is electric charge conversion useful?
It is commonly needed when battery capacity, capacitor sizing, and electrochemistry.
Does this converter mix measurement systems?
The converter supports SI, Other units and keeps their exact definitions separate so results stay accurate.
Related categories
Conversion factors are based on internationally agreed unit definitions. See our methodology and sources for details on how these values are verified.