Milliampere-Hours to Ampere-Hours Converter

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

1 mAh = 0.001 Ah
1 Ah = 1,000 mAh

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To

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How to convert milliampere-hours to ampere-hours

Use this formula:

Ah = mAh × 0.001

Examples

5 mAh = 0.005 Ah
12 mAh = 0.012 Ah
100 mAh = 0.1 Ah

mAh to Ah conversion chart

milliampere-hours (mAh)	ampere-hours (Ah)
0.1 mAh	0.0001 Ah
0.25 mAh	0.00025 Ah
0.5 mAh	0.0005 Ah
1 mAh	0.001 Ah
2 mAh	0.002 Ah
3 mAh	0.003 Ah
4 mAh	0.004 Ah
5 mAh	0.005 Ah
6 mAh	0.006 Ah
7 mAh	0.007 Ah
8 mAh	0.008 Ah
9 mAh	0.009 Ah
10 mAh	0.01 Ah
12 mAh	0.012 Ah
15 mAh	0.015 Ah
20 mAh	0.02 Ah
25 mAh	0.025 Ah
30 mAh	0.03 Ah
40 mAh	0.04 Ah
50 mAh	0.05 Ah
60 mAh	0.06 Ah
70 mAh	0.07 Ah
75 mAh	0.075 Ah
80 mAh	0.08 Ah
90 mAh	0.09 Ah
100 mAh	0.1 Ah
150 mAh	0.15 Ah
200 mAh	0.2 Ah
250 mAh	0.25 Ah
500 mAh	0.5 Ah
1,000 mAh	1 Ah

About the units

Milliampere-hour (mAh) is a commonly used unit. 1 mAh = 3.6 C.

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

Frequently asked questions

How do I convert milliampere-hours to ampere-hours?: Multiply the value in mAh by 0.001.
How many ampere-hours are in 1 milliampere-hour?: 1 mAh = 0.001 Ah.
What is 12 mAh in Ah?: 12 mAh = 0.012 Ah.
How do I convert ampere-hours to milliampere-hours?: Use the reverse converter: Ah → mAh.

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Related conversions

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

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