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Unit converter

Electric Current Converter

Convert between amperes, milliamperes, microamperes, nanoamperes, and kiloamperes.

Amperes to Milliamperes

1 Ampere = 1,000 Milliamperes
1,000

About these units

Amperes

The ampere is the SI base unit of electric current, measuring the flow of charge. A typical phone charger delivers 1–3 amperes.

Milliamperes

The milliampere is one-thousandth of an ampere, used for small currents in electronics and sensors.

Conversion formula

To convert Ampere to Milliampere, multiply the value by 1,000.

Quick reference

AmperesMilliamperes
11,000
22,000
55,000
1010,000
100100,000

Frequently asked questions

How many Milliamperes are in one Ampere?
1 Ampere = 1,000 Milliamperes.
How many Amperes are in one Milliampere?
1 Milliampere = 0.001 (1 × 10⁻³) Amperes.

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