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Electric Current Converter

Enter a value below to convert between metric, imperial, and standard electric current units.

Convert Electric Current

Enter a value and select the units to convert between amperes, milliamperes, and kiloamperes.

Instant conversion
Result
0.01 A
10 mA = 0.01 A
0.01 A = 10 mA = 0.00001 kAGet Widget

You can change the units using the dropdowns above or click on a unit button.

Suggested Conversions

Common Electric Current Reference Points

Here are some common electric current values in Ampere (A), Milliampere (mA), and Kiloampere (kA). Click any preset value or arrow to load it into the converter.

DescriptionAmpere (A)Milliampere (mA)Kiloampere (kA)
LED indicator current (0.02 A / 20 mA)0.02200.00002
USB 2.0 port limit (0.5 A / 500 mA)0.55000.0005
1 Ampere SI base current (1,000 mA)11,0000.001
Household circuit breaker (15 A)1515,0000.015
Residential main service panel (200 A)200200,0000.2

Electric Current Conversion Formulas

Use the following formulas to convert between amperes, milliamperes, and kiloamperes.

Amps to Milliamps
mA = A × 1,000
Milliamps to Amps
A = mA ÷ 1,000
Kiloamps to Amps
A = kA × 1,000
Example: Convert 500 Milliamperes (mA) to Amperes (A)
A = 500 ÷ 1,000
A = 0.5 A

1 Ampere (A) equals 1,000 milliamperes (mA) or 1,000,000 microamperes (µA).

More Milliampere & Ampere Conversions

Convert from Milliamperes

Convert to Amperes

Frequently Asked Questions

1 milliampere (mA) equals 0.001 amperes (A). Multiply your milliampere value by 0.001 or enter it in the Electric Current Converter above for instant calculation.

All Electric Current Conversion Calculators (4)

Select any dedicated electric current pair below for worked examples and printable tables

Milliamps to Amps (mA to A)Amps to Milliamps (A to mA)Microamps to Milliamps (µA to mA)Kiloamps to Amps (kA to A)

Category Conversion Matrix

Simultaneous comparison of 4 units in this category

Ampere (A)
1
Milliampere (mA)
1,000
Microampere (µA)
1,000,000
Kiloampere (kA)
0.001

Electric Current Unit Definitions & Symbols

Ampere (A)

SI

Base SI unit of electric current.

Milliampere (mA)

METRIC

One-thousandth of an Ampere (0.001 A).

Microampere (µA)

METRIC

One-millionth of an Ampere (10⁻⁶ A).

Kiloampere (kA)

METRIC

Equal to 1,000 Amperes.

References

NIST · BIPM · ISO
  1. [1]
    NIST OWM (SI Units — Electric Current)·Electric Current Metrology Standards — Ampere (A), Milliampere (mA) & Microampere (µA)
    NIST OWM Standard
  2. [2]
    BIPM (SI Base Unit: Ampere (A))·International Reference Specification for Electric Current & Amperage
    BIPM Reference
  3. [3]
    NIST SP 811 (NIST SP 811 App. B.9 (Electricity & Magnetism))·Official Electric Current Conversion Factors & Rounding Rules
    NIST SP 811 Tables
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