Coulombs to Milliampere-hours (C to mA·h)
Free online coulomb to milliampere-hour converter. Type a value, get an instant exact result — plus the formula, a ready-made conversion table, and reverse conversion.
ELECTRIC CHARGE CONVERTER — INSTANT RESULT
Formula: multiply the coulomb value by 0.27777778 — i.e. mA·h = C × 0.27777778
Quick check: 1 C = 0.27777778 mA·h
Quick check: 1 C = 0.27777778 mA·h
Coulombs to Milliampere-hours conversion table
| Coulombs (C) | Milliampere-hours (mA·h) |
|---|---|
| 1 C | 0.27777778 mA·h |
| 2 C | 0.55555556 mA·h |
| 3 C | 0.83333333 mA·h |
| 4 C | 1.11111111 mA·h |
| 5 C | 1.38888889 mA·h |
| 6 C | 1.66666667 mA·h |
| 7 C | 1.94444444 mA·h |
| 8 C | 2.22222222 mA·h |
| 9 C | 2.5 mA·h |
| 10 C | 2.77777778 mA·h |
| 15 C | 4.16666667 mA·h |
| 20 C | 5.55555556 mA·h |
| 25 C | 6.94444444 mA·h |
| 30 C | 8.33333333 mA·h |
| 40 C | 11.11111111 mA·h |
| 50 C | 13.88888889 mA·h |
| 75 C | 20.83333333 mA·h |
| 100 C | 27.77777778 mA·h |
| 250 C | 69.44444444 mA·h |
| 500 C | 138.88888889 mA·h |
| 1,000 C | 277.77777778 mA·h |
How to convert coulombs to milliampere-hours
To convert coulombs to milliampere-hours, multiply the amount in coulombs by 0.27777778. For example, 10 C = 2.77777778 mA·h. To convert in the other direction, divide by the same factor, or use the ⇄ swap button above.
Convert electric charge between coulombs, ampere-hours and faradays. One ampere-hour is 3600 coulombs; one faraday is the charge of one mole of electrons.
Frequently asked questions
How many milliampere-hours are in one coulomb?
One coulomb is exactly 0.27777778 milliampere-hours.
How do I convert C to mA·h?
Multiply the C value by 0.27777778 to get mA·h. The converter at the top of this page does this automatically and works in both directions.
How much is 100 coulombs in milliampere-hours?
100 coulombs equals 27.77777778 milliampere-hours.