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Ampere-hour to Milliampere-hour

Convert Ampere-hour to Milliampere-hour and get the exact value instantly.

1 Ah = 1000 mAh

About this conversion

To convert Ampere-hour to Milliampere-hour, multiply the number of Ampere-hour by 1000.

Electric charge is the coulomb in SI, yet battery capacity is quoted in ampere-hours and milliampere-hours, so converting between them tells you how long a cell will last.

Conversion table

Ampere-hour (Ah)Milliampere-hour (mAh)
1 Ah1000 mAh
2 Ah2000 mAh
5 Ah5000 mAh
10 Ah10000 mAh
100 Ah100000 mAh

How to use this converter

  1. Enter your Ampere-hour value

    Type any number into the Ampere-hour field. It starts at 1 so you can read the rate straight away.

  2. Read the Milliampere-hour result

    The amount in Milliampere-hour updates as you type, so there is no button to press and nothing to wait for.

  3. Swap or keep exploring

    Use the swap control to flip the direction, or pick a related conversion from the list below.

Frequently asked

How many Milliampere-hour are in one Ampere-hour?
One Ampere-hour equals 1000 mAh. Enter any amount above to get an exact figure for your own value.
Is this converter accurate?
Yes. It uses the exact international definition of each unit and computes on your device, so the only rounding is for display.
Do you upload the numbers I enter?
No. The Ampere-hour to Milliampere-hour conversion runs entirely in your browser tab, and nothing you type is sent to a server.
Does it work on my phone?
Yes. It runs in any modern mobile browser and keeps working offline once the page has loaded.

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