Electric Charge Converter — coulomb, mAh, Ah

Convert electric charge between coulombs, milli/micro/nano-coulombs, ampere-hours and CGS units.

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Electric Charge Converter

Electricity • 9 units

Value to Convert ⓘ

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How to Use the Electric Charge Converter

Enter a value — type any number. Invalid text and symbols are blocked automatically.
Select From and To units — choose the units to convert between.
Read the animated result — the converted value, factor, and full reference table update instantly.
Use Swap (⇄) — reverse the conversion in one click.

Why Use This Electric Charge Converter

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Accurate Standards

Built on internationally recognised SI and standards-body conversion factors for dependable results.

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Instant & Animated

Results update live as you type, with a clear visual breakdown across every unit at once.

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100% Private

Everything runs in your browser — no account, no uploads, nothing leaves your device.

Common Electric Charge Converter Values

Quick reference — 1 Milliampere-hour (mAh) is equal to:

Coulomb	C	3.600000
Millicoulomb	mC	3,600
Microcoulomb	µC	3,600,000
Nanocoulomb	nC	3,600,000,000
Picocoulomb	pC	3,600,000,000,000
Ampere-hour	Ah	0.001
Abcoulomb (EMU)	abC	0.36
Faraday	F	0.0000373114

Electric Charge Converter FAQ

How many coulombs is a milliamp-hour? ▾

1 mAh = 3.6 coulombs (since 1 Ah = 3,600 C). A 3,000 mAh phone battery stores about 10,800 C of charge.

How do I convert mAh to Ah? ▾

Divide by 1,000. A 5,000 mAh battery is 5 Ah. To get watt-hours, multiply Ah by the battery voltage.

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✔ Reviewed by the True Value Calc editorial team🗓 Last updated June 2026📚 Sources: NIST, BIPM SI unit definitions