Electric Charge Converter
Quick answer: Choose a starting unit and a target unit, then enter a value. Common conversions: 1 C = 0.2777778 mAh; 1 C = 0.0002777778 Ah; 1 C = 1,000 mC. This converter covers 14 electric charge units.
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Use the Electric Charge Converter
Electric Charge formula and what each symbol means
target = value × (factor of starting unit ÷ factor of target unit), where each factor is the unit value in C.
| Symbol | Meaning |
|---|---|
| value | The number you want to convert |
| factor | The unit’s size expressed in the base unit (C) |
Electric Charge examples
C to mAh
10 C = 2.777778 mAh.
C to Ah
10 C = 0.002777778 Ah.
C to mC
10 C = 10,000 mC.
How to calculate Electric Charge step by step
- Choose the starting unit and the target unit.
- Enter your value.
- Read the converted value, plus the conversion factor in both directions.
Popular electric charge conversions
- Coulombs to Milliampere hours converter
- Coulombs to Ampere hours converter
- Coulombs to Millicoulombs converter
- Coulombs to Microcoulombs converter
- Milliampere hours to Coulombs converter
- Milliampere hours to Ampere hours converter
- Milliampere hours to Millicoulombs converter
- Milliampere hours to Microcoulombs converter
- Ampere hours to Coulombs converter
- Ampere hours to Milliampere hours converter
- Ampere hours to Millicoulombs converter
- Ampere hours to Microcoulombs converter
- Millicoulombs to Coulombs converter
- Millicoulombs to Milliampere hours converter
- Millicoulombs to Ampere hours converter
- Millicoulombs to Microcoulombs converter
How to read your Electric Charge result
The coulomb is the SI unit of electric charge, the charge moved by one ampere in one second. One ampere hour is exactly 3,600 C and one milliampere hour is exactly 3.6 C. Battery capacity in mAh is a charge, not an energy; multiply by voltage to estimate watt-hours.
| UNIT | SYMBOL | EQUALS | VALUE OF 1 C |
|---|---|---|---|
| Coulomb | C | 1 C = 1 C | 1 C |
| Kilocoulomb | kC | 1 kC = 1,000 C | 0.001 kC |
| Millicoulomb | mC | 1 mC = 0.001 C | 1,000 mC |
| Microcoulomb | µC | 1 µC = 0.000001 C | 1,000,000 µC |
| Nanocoulomb | nC | 1 nC = 1×10⁻⁹ C | 1,000,000,000 nC |
| Picocoulomb | pC | 1 pC = 1×10⁻¹² C | 1,000,000,000,000 pC |
| Ampere hour | Ah | 1 Ah = 3,600 C | 0.0002777778 Ah |
| Milliampere hour | mAh | 1 mAh = 3.6 C | 0.2777778 mAh |
| Ampere minute | A·min | 1 A·min = 60 C | 0.01666667 A·min |
| Ampere second | A·s | 1 A·s = 1 C | 1 A·s |
| Abcoulomb | abC | 1 abC = 10 C | 0.1 abC |
| Statcoulomb | statC | 1 statC = 3.335641×10⁻¹⁰ C | 2,997,925,000 statC |
| Faraday | F | 1 F = 96,485.332 C | 0.00001036427 F |
| Elementary charge | e | 1 e = 1.6021766×10⁻¹⁹ C | 6.241509×10¹⁸ e |
Common mistakes when calculating Electric Charge
- Treating mAh as a unit of energy; energy in Wh is mAh × V ÷ 1,000.
- Mixing mC and µC, which differ by 1,000.
- Comparing battery capacities at different voltages without converting to Wh.
Electric Charge FAQ
How many coulombs is 1 mAh?
Exactly 3.6 C.
How many coulombs is 1 Ah?
Exactly 3,600 C.
How do I convert mAh to Wh?
Multiply mAh by the battery voltage and divide by 1,000.
What is the base unit for electric charge?
This converter uses coulomb (C) as the common base unit: every value is first converted to it and then to the target unit.
How do I convert between two electric charge units?
Choose the starting and target units, enter the value and read the result. By hand: convert to the base unit with the table, then divide by the target unit factor.
How many milliampere hours are in 1 coulomb?
1 C = 0.2777778 mAh.
How many ampere hours are in 1 coulomb?
1 C = 0.0002777778 Ah.
How many millicoulombs are in 1 coulomb?
1 C = 1,000 mC.
Which electric charge units does this converter support?
It covers 14 units: coulomb (C), kilocoulomb (kC), millicoulomb (mC), microcoulomb (µC), nanocoulomb (nC), picocoulomb (pC), ampere hour (Ah), milliampere hour (mAh), ampere minute (A·min), ampere second (A·s), abcoulomb (abC), statcoulomb (statC), faraday (F), elementary charge (e).
How accurate is the electric charge converter?
Results are calculated at full double precision and shown to about 8 significant figures. Round the answer to the precision of your original measurement; a result cannot be more accurate than the number you started with.
More in Electric Charge converters
- Microcoulombs to Ampere hours Converter
- Microcoulombs to Coulombs Converter
- Microcoulombs to Milliampere hours Converter
- Coulombs to Microcoulombs Converter
- Microcoulombs to Millicoulombs Converter
- Milliampere hours to Ampere hours Converter
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Method, review and disclaimer
Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors, BIPM: the International System of Units (SI)