Ampere-Hours to Coulombs Converter

Ah → C: type a value and the result appears instantly.

1 Ah = 3,600 C
1 C = 0.0002777777778 Ah

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How to convert ampere-hours to coulombs

Use this formula:

C = Ah × 3,600

Examples

5 Ah = 18,000 C
12 Ah = 43,200 C
100 Ah = 360,000 C

Ah to C conversion chart

ampere-hours (Ah)	coulombs (C)
0.1 Ah	360 C
0.25 Ah	900 C
0.5 Ah	1,800 C
1 Ah	3,600 C
2 Ah	7,200 C
3 Ah	10,800 C
4 Ah	14,400 C
5 Ah	18,000 C
6 Ah	21,600 C
7 Ah	25,200 C
8 Ah	28,800 C
9 Ah	32,400 C
10 Ah	36,000 C
12 Ah	43,200 C
15 Ah	54,000 C
20 Ah	72,000 C
25 Ah	90,000 C
30 Ah	108,000 C
40 Ah	144,000 C
50 Ah	180,000 C
60 Ah	216,000 C
70 Ah	252,000 C
75 Ah	270,000 C
80 Ah	288,000 C
90 Ah	324,000 C
100 Ah	360,000 C
150 Ah	540,000 C
200 Ah	720,000 C
250 Ah	900,000 C
500 Ah	1,800,000 C
1,000 Ah	3,600,000 C

About the units

Ampere-hour (Ah) is a commonly used unit. 1 Ah = 1,000 mAh.

Coulomb (C) is a metric (SI) unit. 1 C = 0.2777777778 mAh.

Frequently asked questions

How do I convert ampere-hours to coulombs?: Multiply the value in Ah by 3,600.
How many coulombs are in 1 ampere-hour?: 1 Ah = 3,600 C.
What is 12 Ah in C?: 12 Ah = 43,200 C.
How do I convert coulombs to ampere-hours?: Use the reverse converter: C → Ah.

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Related conversions

C → Ah mAh → Ah Ah → mAh mAh → C C → mAh

Sources: NIST SP 811 · BIPM SI Brochure · NIST Handbook 44. Last reviewed: 2026-10 · FreeUnitConverters