Amperes to Milliamperes Converter 2025 - Current Conversion Calculator

Amperes to Milliamperes Converter

Convert amperes to milliamperes for electrical calculations

Formula: milliamperes = amperes × 1,000

Note: 1 ampere = 1,000 milliamperes

About Amperes

The ampere is the SI base unit of electric current.

  • Named after André-Marie Ampère
  • Measures electric current flow
  • Symbol: A or amp
  • Base unit in electrical calculations

About Milliamperes

The milliampere is a smaller unit for measuring electric current.

  • Common in electronics
  • 1 milliampere = 0.001 amperes
  • Used for small currents
  • Symbol: mA

Current Conversion Examples

Amperes Milliamperes Application
0.001 A 1 mA Small LED
0.02 A 20 mA Standard LED
0.1 A 100 mA Electronic circuit
1 A 1,000 mA Small motor

Conversion Formula & Electrical Notes

Formula

Milliamperes = Amperes × 1,000

Amperes = Milliamperes ÷ 1,000

Safety Notes

  • • 1-5 mA: Barely perceptible
  • • 5-10 mA: Painful sensation
  • • >10 mA: Muscular control lost
  • • Always follow safety protocols