Electric Charge Converter — Free Online Tool

Convert coulombs, ampere-hours, mAh, faraday, abcoulomb and statcoulomb. Electric Charge Converter is a free online tool from the ToolsRift Unit Converters collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.

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How to use Electric Charge Converter

  1. Open the Electric Charge Converter above — it loads instantly, no account needed.
  2. Enter or upload your input. Everything is processed locally on your device.
  3. Get your result immediately and copy or download it with one click.

Frequently asked questions

How many coulombs in a mAh?

1 milliamp-hour = 3.6 coulombs, and 1 ampere-hour = 3,600 coulombs.

How do I compare battery mAh?

mAh is charge capacity. A 3,000 mAh battery holds 3 Ah = 10,800 coulombs of charge.

What is a faraday?

One faraday equals about 96,485 coulombs — the charge of one mole of electrons.

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