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Electricity Converters

Charge Converter

Result

... Coulomb = ... Ampere-hour

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Coulomb to Ampere-hour Converter

Use this page to convert coulomb values into ampere-hour, with background details, formulas, a worked example, and a quick conversion table.

Conversion formula

1 C = 0.000277777777777778 A*h

1 A*h = 3,600 C

Example: 1 C = 0.000277777777777778 A*h

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Coulomb to MegacoulombCoulomb to KilocoulombCoulomb to MillicoulombCoulomb to MicrocoulombMegacoulomb to CoulombMegacoulomb to KilocoulombMegacoulomb to MillicoulombMegacoulomb to MicrocoulombKilocoulomb to CoulombKilocoulomb to Megacoulomb

Coulomb

Coulomb measures electric charge, equal to one ampere-second.

History: The coulomb is named after Charles-Augustin de Coulomb and is the SI derived unit of electric charge.

Current use: Used in electronics, electrochemistry, batteries, capacitors, current-time calculations, and physics.

Also written as C, coulombs.

Ampere-hour

One ampere-hour is equal to 3600 coulombs.

History: Ampere-hours became common for battery capacity and current-time accounting.

Current use: Used for batteries, power systems, energy storage, and electrical capacity ratings.

Also written as A*h, Ah, amp hour, amp hours, ampere hours.

Coulomb to Ampere-hour table

Coulomb [C]Ampere-hour [A*h]
0.01 C0.00000277777777777778 A*h
0.1 C0.0000277777777777778 A*h
1 C0.000277777777777778 A*h
2 C0.000555555555555556 A*h
5 C0.00138888888888889 A*h
10 C0.00277777777777778 A*h
20 C0.00555555555555556 A*h
50 C0.0138888888888889 A*h
100 C0.0277777777777778 A*h

Frequently asked questions

  • How many Ampere-hour (A*h) are in one Coulomb (C)?

    One Coulomb equals 0.000277777777777778 Ampere-hour.

  • How do you convert Coulomb to Ampere-hour?

    Multiply the Coulomb value by 0.000277777777777778 to get the result in Ampere-hour.

  • How do you convert Ampere-hour back to Coulomb?

    Multiply the Ampere-hour value by 3,600 to get back to Coulomb.

  • What is 1 Coulomb in Ampere-hour?

    1 Coulomb equals 0.000277777777777778 Ampere-hour.