How many ampere-hours are in 1 milliampere-hour?

1 milliampere-hour (mAh) = 0.001 Ah.

Is this converter free?

Yes. It is completely free, with no account and no usage limits.

How accurate are the results?

All conversion factors come from international standards (SI, NIST) and exact legal definitions. Results are calculated with 10 significant digits.

Does it work on my phone?

Yes. The site is optimized for phones, tablets and desktops and also works offline once loaded.

Electric Charge & Battery Capacity Converter — C, mC, µC, mAh, Ah, kAh, F

This free converter switches instantly between all common and professional units in this category. Results update as you type, work on any device and need no account.

Available units

Coulomb, Millicoulomb, Microcoulomb, Milliampere-hour, Ampere-hour, Kiloampere-hour, Faraday constant.

Most used conversions

Value	Result
1 Milliampere-hour (mAh)	0.001 Ah
1 Ampere-hour (Ah)	1,000 mAh
1 Milliampere-hour (mAh)	3.6 C
1 Ampere-hour (Ah)	3,600 C
1 Coulomb (C)	0.277778 mAh
1 Kiloampere-hour (kAh)	1,000 Ah
1 Millicoulomb (mC)	0.001 C

How the conversion works

Every value is first converted to the base unit Coulomb (C) and then to the target unit. All factors come from international standards (SI, NIST); results are shown with 10 significant digits.

Frequently asked questions

How many ampere-hours are in 1 milliampere-hour?: 1 milliampere-hour (mAh) = 0.001 Ah.
Is this converter free?: Yes. It is completely free, with no account and no usage limits.
How accurate are the results?: All conversion factors come from international standards (SI, NIST) and exact legal definitions. Results are calculated with 10 significant digits.
Does it work on my phone?: Yes. The site is optimized for phones, tablets and desktops and also works offline once loaded.

Electric Charge & Battery Capacity Converter

Value → Result

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