Coulomb Conversion Calculator
Enter a value in coulombs below to convert to another unit of electric charge.
Results:
What Is a Coulomb?
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A coulomb is a unit used to measure electric charge.
The coulomb is the SI derived unit for electric charge in the metric system. Coulombs can be abbreviated as C; for example, 1 coulomb can be written as 1 C.
Background and Origin
Coulombs are named in honor of Charles-Augustin de Coulomb who published a law quantifying the force between two electrically charged particles in 1785. This law is known today as Coulomb's Law. The coulomb was named as a unit of electromotive force in 1881.
How Much Is a Coulomb?
One coulomb is the electric charge equal to one ampere of current over one second.[1]
The coulomb can be expressed as QC = IA × ts
The charge in coulombs is equal to the current in amperes times the time in seconds.
How to Convert Coulombs
To convert coulombs to another unit of electric charge, you need to multiply the value by a conversion factor. A conversion factor is a numerical value used to change the units of a measurement without changing the value.[2]
You can find the conversion factors for coulombs in the conversion table below.
Then, multiply the electric charge measurement by the conversion factor to find the equivalent value in the desired unit of measurement.
coulombs × conversion factor = result
You can also use a calculator, such as one of the converters below, for the conversion.
Coulomb Conversion Table
| coulombs | millicoulombs | microcoulombs | nanocoulombs | picocoulombs | statcoulombs | abcoulombs | electron charge | ampere-hours | milliampere-hours |
|---|---|---|---|---|---|---|---|---|---|
| 1 C | 1,000 mC | 1,000,000 μC | 1,000,000,000 nC | 1,000,000,000,000 pC | 2,997,920,000 stC | 0.1 abC | 6,241,500,000,000,000,000 e | 0.000278 Ah | 0.277778 mAh |
| 2 C | 2,000 mC | 2,000,000 μC | 2,000,000,000 nC | 2,000,000,000,000 pC | 5,995,840,000 stC | 0.2 abC | 12,483,000,000,000,000,000 e | 0.000556 Ah | 0.555556 mAh |
| 3 C | 3,000 mC | 3,000,000 μC | 3,000,000,000 nC | 3,000,000,000,000 pC | 8,993,760,000 stC | 0.3 abC | 18,725,000,000,000,000,000 e | 0.000833 Ah | 0.833333 mAh |
| 4 C | 4,000 mC | 4,000,000 μC | 4,000,000,000 nC | 4,000,000,000,000 pC | 11,991,680,000 stC | 0.4 abC | 24,966,000,000,000,000,000 e | 0.001111 Ah | 1.111111 mAh |
| 5 C | 5,000 mC | 5,000,000 μC | 5,000,000,000 nC | 5,000,000,000,000 pC | 14,989,600,000 stC | 0.5 abC | 31,208,000,000,000,000,000 e | 0.001389 Ah | 1.388889 mAh |
| 6 C | 6,000 mC | 6,000,000 μC | 6,000,000,000 nC | 6,000,000,000,000 pC | 17,987,520,000 stC | 0.6 abC | 37,449,000,000,000,000,000 e | 0.001667 Ah | 1.666667 mAh |
| 7 C | 7,000 mC | 7,000,000 μC | 7,000,000,000 nC | 7,000,000,000,000 pC | 20,985,440,000 stC | 0.7 abC | 43,691,000,000,000,000,000 e | 0.001944 Ah | 1.944444 mAh |
| 8 C | 8,000 mC | 8,000,000 μC | 8,000,000,000 nC | 8,000,000,000,000 pC | 23,983,359,999 stC | 0.8 abC | 49,932,000,000,000,000,000 e | 0.002222 Ah | 2.222222 mAh |
| 9 C | 9,000 mC | 9,000,000 μC | 9,000,000,000 nC | 9,000,000,000,000 pC | 26,981,279,999 stC | 0.9 abC | 56,174,000,000,000,000,000 e | 0.0025 Ah | 2.5 mAh |
| 10 C | 10,000 mC | 10,000,000 μC | 10,000,000,000 nC | 10,000,000,000,000 pC | 29,979,199,999 stC | 1 abC | 62,415,000,000,000,000,000 e | 0.002778 Ah | 2.777778 mAh |
| 11 C | 11,000 mC | 11,000,000 μC | 11,000,000,000 nC | 11,000,000,000,000 pC | 32,977,119,999 stC | 1.1 abC | 68,657,000,000,000,000,000 e | 0.003056 Ah | 3.055556 mAh |
| 12 C | 12,000 mC | 12,000,000 μC | 12,000,000,000 nC | 12,000,000,000,000 pC | 35,975,039,999 stC | 1.2 abC | 74,898,000,000,000,000,000 e | 0.003333 Ah | 3.333333 mAh |
| 13 C | 13,000 mC | 13,000,000 μC | 13,000,000,000 nC | 13,000,000,000,000 pC | 38,972,959,999 stC | 1.3 abC | 81,140,000,000,000,000,000 e | 0.003611 Ah | 3.611111 mAh |
| 14 C | 14,000 mC | 14,000,000 μC | 14,000,000,000 nC | 14,000,000,000,000 pC | 41,970,879,999 stC | 1.4 abC | 87,381,000,000,000,000,000 e | 0.003889 Ah | 3.888889 mAh |
| 15 C | 15,000 mC | 15,000,000 μC | 15,000,000,000 nC | 15,000,000,000,000 pC | 44,968,799,999 stC | 1.5 abC | 93,623,000,000,000,000,000 e | 0.004167 Ah | 4.166667 mAh |
| 16 C | 16,000 mC | 16,000,000 μC | 16,000,000,000 nC | 16,000,000,000,000 pC | 47,966,719,999 stC | 1.6 abC | 99,864,000,000,000,000,000 e | 0.004444 Ah | 4.444444 mAh |
| 17 C | 17,000 mC | 17,000,000 μC | 17,000,000,000 nC | 17,000,000,000,000 pC | 50,964,639,999 stC | 1.7 abC | 106,110,000,000,000,000,000 e | 0.004722 Ah | 4.722222 mAh |
| 18 C | 18,000 mC | 18,000,000 μC | 18,000,000,000 nC | 18,000,000,000,000 pC | 53,962,559,999 stC | 1.8 abC | 112,350,000,000,000,000,000 e | 0.005 Ah | 5 mAh |
| 19 C | 19,000 mC | 19,000,000 μC | 19,000,000,000 nC | 19,000,000,000,000 pC | 56,960,479,999 stC | 1.9 abC | 118,590,000,000,000,000,000 e | 0.005278 Ah | 5.277778 mAh |
| 20 C | 20,000 mC | 20,000,000 μC | 20,000,000,000 nC | 20,000,000,000,000 pC | 59,958,399,999 stC | 2 abC | 124,830,000,000,000,000,000 e | 0.005556 Ah | 5.555556 mAh |
Coulomb Conversion Calculators
You can also convert electric charge using one of our coulomb converters below.
You might also find our other electrical calculators useful.
References
- International Bureau of Weights and Measures, The International System of Units, 9th Edition, 2019, https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-EN.pdf
- National Institute of Standards & Technology, Unit Conversion, https://www.nist.gov/pml/owm/metric-si/unit-conversion