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... Ampere = ... Milliampere

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Ampere to Milliampere Converter

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

Conversion formula

1 A = 1,000 mA

1 mA = 0.001 A

Example: 1 A = 1,000 mA

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Ampere to KiloampereAmpere to MicroampereKiloampere to AmpereKiloampere to MilliampereKiloampere to MicroampereMilliampere to AmpereMilliampere to KiloampereMilliampere to MicroampereMicroampere to AmpereMicroampere to Kiloampere

Ampere

Ampere measures electric charge flow per second.

History: The ampere is an SI base unit named after Andre-Marie Ampere.

Current use: Used in circuits, electronics, electrical systems, motors, power supplies, and instrumentation.

Also written as A, amp, amps.

Milliampere

One milliampere is equal to 0.001 amperes.

History: Milliamperes are common in electronics and low-power devices.

Current use: Used for sensors, circuits, chargers, LEDs, medical devices, and instrumentation.

Also written as mA, milliamp, milliamps, milliamperes.

Ampere to Milliampere table

Ampere [A]Milliampere [mA]
0.01 A10 mA
0.1 A100 mA
1 A1,000 mA
2 A2,000 mA
5 A5,000 mA
10 A10,000 mA
20 A20,000 mA
50 A50,000 mA
100 A100,000 mA

Frequently asked questions

  • How many Milliampere (mA) are in one Ampere (A)?

    One Ampere equals 1,000 Milliampere.

  • How do you convert Ampere to Milliampere?

    Multiply the Ampere value by 1,000 to get the result in Milliampere.

  • How do you convert Milliampere back to Ampere?

    Multiply the Milliampere value by 0.001 to get back to Ampere.

  • What is 1 Ampere in Milliampere?

    1 Ampere equals 1,000 Milliampere.