Current Converter

Use this tool to convert between different units of electric current, such as Amperes, Milliamperes, Kiloamperes, and more.

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Common Current Conversions

A to mA A → mA
kA to A kA → A
mA to A mA → A
A to kA A → kA

What is Current Conversion?

Current conversion is the process of converting electric current measurements from one unit to another. Our current converter tool makes it easy to switch between different prefixes of the ampere, the SI unit of electric current.

Common units include amperes (A), milliamperes (mA), kiloamperes (kA), and microamperes (μA). These conversions are essential for electrical engineering, electronics design, power distribution, and circuit analysis.

Simply enter your value in the "From" field, select the original unit, choose your target unit in the "To" field, and the converter will instantly display the converted result along with the conversion formula.

Current Conversion Examples

Electronics Example

LED and circuit current requirements:

  • 20mA = 0.02A
  • 500mA = 0.5A
  • 1.5A = 1500mA

Power Systems Example

Industrial and power distribution currents:

  • 100A = 0.1kA
  • 500A = 0.5kA
  • 2000A = 2kA

Household Appliances Example

Typical appliance current draws:

  • Laptop: 2.5A = 2500mA
  • Microwave: 12A = 0.012kA
  • Hair dryer: 15A

Frequently Asked Questions

How many milliamperes in an ampere?

One ampere equals exactly 1000 milliamperes (mA). This metric prefix conversion is commonly used in electronics where currents are often in the milliampere range.

How do I convert kA to A?

To convert kiloamperes to amperes, multiply by 1000. For example, 2.5 kA × 1000 = 2500 A. This is used for high-current applications like power transmission.

What is the typical current for a USB charger?

Standard USB provides 500mA to 900mA (0.5-0.9A), USB-C can deliver up to 5A, and fast chargers may provide 3-5A. Always check device specifications for safe current levels.

How many microamperes in a milliampere?

One milliampere (mA) equals 1000 microamperes (μA). For very low current applications like sensors or biomedical devices, microampere conversions are essential.

What is the formula for A to mA conversion?

To convert amperes to milliamperes, multiply by 1000. For example, 0.5A × 1000 = 500mA. This is commonly used when working with small electronic devices.