⇌Free
Electric charge converter
Convert coulombs, ampere-hours and milliampere-hours.
Charge is scaled through coulombs, and one ampere-hour equals 3,600 coulombs because an hour has 3,600 seconds. One milliampere-hour therefore equals 3.6 coulombs.
How to use
- Enter your text, values, or image.
- Adjust the options and run the tool.
- Copy or download your result.
Worked example
Example input
Value: 1 From unit: Ah To unit: C
Example result
{
"value": 3600,
"unit": "C"
}Limitations and details
Signed charge is supported; ampere-hours are not watt-hours, and converting battery charge to energy also requires voltage.
Inputs and options
- Value
- Number
- From unit
- Coulomb / Millicoulomb / Microcoulomb / Ampere-hour / Milliampere-hour
- To unit
- Coulomb / Millicoulomb / Microcoulomb / Ampere-hour / Milliampere-hour
Frequently asked questions
Is this tool free and private?
Yes. All 300 tools are free in this phase. Processing happens in your browser; your input and files are not sent to our servers.