Coulombs to Ampere-hours Converter
1 coulomb (C) equals 0.000277777778 ampere-hours (Ah).
Quick answer
- 1 coulomb = 0.000277777778 ampere-hours
- 1 ampere-hour = 3,600 coulombs
- Formula: Ah = C ÷ 3,600
1 coulomb = 0.000277777778 ampere-hours
How to convert coulombs to ampere-hours
Ah = C ÷ 3,600
To convert coulombs to ampere-hours, divide the number of coulombs by 3,600.
Example: 42 C to Ah
- Start with the value in coulombs: 42 C.
- Divide by 3,600: 42 ÷ 3,600 = 0.01166666667.
- Result: 42 coulombs = 0.01166666667 ampere-hours.
Going the other way, 1 ampere-hour = 3,600 coulombs, so to convert ampere-hours back to coulombs you multiply by the same number. See ampere-hours to coulombs.
Coulombs to ampere-hours conversion table
| Coulombs (C) | Ampere-hours (Ah) |
|---|---|
| 0.1 C | 0.000027777778 Ah |
| 0.2 C | 0.000055555556 Ah |
| 0.3 C | 0.000083333333 Ah |
| 0.4 C | 0.000111111111 Ah |
| 0.5 C | 0.000138888889 Ah |
| 0.6 C | 0.000166666667 Ah |
| 0.7 C | 0.000194444444 Ah |
| 0.8 C | 0.000222222222 Ah |
| 0.9 C | 0.00025 Ah |
| 1 C | 0.000277777778 Ah |
| 1.5 C | 0.000416666667 Ah |
| 2 C | 0.000555555556 Ah |
| 2.5 C | 0.000694444444 Ah |
| 3 C | 0.000833333333 Ah |
| 3.5 C | 0.000972222222 Ah |
| 4 C | 0.001111111111 Ah |
| 4.5 C | 0.00125 Ah |
| 5 C | 0.001388888889 Ah |
| 6 C | 0.001666666667 Ah |
| 7 C | 0.001944444444 Ah |
| 7.5 C | 0.002083333333 Ah |
| 8 C | 0.002222222222 Ah |
| 9 C | 0.0025 Ah |
| 10 C | 0.002777777778 Ah |
| 11 C | 0.003055555556 Ah |
| 12 C | 0.003333333333 Ah |
| 13 C | 0.003611111111 Ah |
| 14 C | 0.003888888889 Ah |
| 15 C | 0.004166666667 Ah |
| 16 C | 0.004444444444 Ah |
| 17 C | 0.004722222222 Ah |
| 18 C | 0.005 Ah |
| 19 C | 0.005277777778 Ah |
| 20 C | 0.005555555556 Ah |
| 21 C | 0.005833333333 Ah |
| 22 C | 0.006111111111 Ah |
| 23 C | 0.006388888889 Ah |
| 24 C | 0.006666666667 Ah |
| 25 C | 0.006944444444 Ah |
| 26 C | 0.007222222222 Ah |
More C to Ah values
- 27 C
- 28 C
- 29 C
- 30 C
- 31 C
- 32 C
- 33 C
- 34 C
- 35 C
- 36 C
- 37 C
- 38 C
- 39 C
- 40 C
- 41 C
- 42 C
- 43 C
- 44 C
- 45 C
- 46 C
- 47 C
- 48 C
- 49 C
- 50 C
- 51 C
- 52 C
- 53 C
- 54 C
- 55 C
- 56 C
- 57 C
- 58 C
- 59 C
- 60 C
- 61 C
- 62 C
- 63 C
- 64 C
- 65 C
- 66 C
- 67 C
- 68 C
- 69 C
- 70 C
- 71 C
- 72 C
- 73 C
- 74 C
- 75 C
- 76 C
- 77 C
- 78 C
- 79 C
- 80 C
- 81 C
- 82 C
- 83 C
- 84 C
- 85 C
- 86 C
- 87 C
- 88 C
- 89 C
- 90 C
- 91 C
- 92 C
- 93 C
- 94 C
- 95 C
- 96 C
- 97 C
- 98 C
- 99 C
- 100 C
- 110 C
- 120 C
- 130 C
- 140 C
- 150 C
- 160 C
- 170 C
- 180 C
- 190 C
- 200 C
- 210 C
- 220 C
- 230 C
- 240 C
- 250 C
- 260 C
- 270 C
- 280 C
- 290 C
- 300 C
- 310 C
- 320 C
- 330 C
- 340 C
- 350 C
- 360 C
- 370 C
- 380 C
- 390 C
- 400 C
- 410 C
- 420 C
- 430 C
- 440 C
- 450 C
- 460 C
- 470 C
- 480 C
- 490 C
- 500 C
- 600 C
- 700 C
- 800 C
- 900 C
- 1,000 C
- 1,200 C
- 1,500 C
- 2,000 C
- 2,500 C
- 3,000 C
- 4,000 C
- 5,000 C
- 10,000 C
What is a coulomb?
The coulomb is the SI unit of electric charge, the charge transported by a current of one ampere in one second.
What is an ampere-hour?
The ampere-hour is the charge delivered by one ampere for one hour, 3,600 coulombs.
Convert coulombs to other units
Convert other units to ampere-hours
- Milliampere-hours to ampere-hours
- Elementary charges to ampere-hours
- Faradays to ampere-hours
- Microcoulombs to ampere-hours
- Statcoulombs to ampere-hours
- Millicoulombs to ampere-hours
- Nanocoulombs to ampere-hours
- Abcoulombs to ampere-hours
- Kiloampere-hours to ampere-hours
- Picocoulombs to ampere-hours
- All ampere-hour conversions →
Frequently asked questions
How many ampere-hours are in a coulomb?
One coulomb is 0.000277777778 ampere-hours.
How many coulombs are in an ampere-hour?
One ampere-hour is 3,600 coulombs.
What is the formula to convert coulombs to ampere-hours?
Ah = C ÷ 3,600.