Ampere to Milliampere Converter
Convert ampere to milliampere instantly with accurate results. Essential current conversion tool for electronics, circuit design, and battery calculations.
Relationship Between Amperes and Milliamperes
The conversion between amperes and milliamperes is based on the metric system where 1 ampere equals 1,000 milliamperes.
1 A = 1,000 mA
Therefore,
1 mA = 0.001 A
To convert amperes to milliamperes, we multiply the value in amperes by 1,000 (or divide by 0.001).
For example, 1 A equals 1,000 mA, and 0.5 A equals 500 mA.
Ampere (A)
What is an Ampere (A)?
An ampere (symbol: A), often shortened to amp, is the SI unit of electric current. It represents the flow of electric charge through a conductor. One ampere is defined as one coulomb of charge passing through a point in one second (1 A = 1 C/s).
Historical Context
The ampere is named after French physicist André-Marie Ampère (1775-1836), who is considered the father of electrodynamics. The modern definition was established as part of the International System of Units (SI) and was refined in 2019 based on fundamental physical constants.
Practical Significance
Amperage is crucial for electrical safety and circuit design. The current rating of wires, circuit breakers, and fuses is specified in amperes. Household circuits typically handle 15-20A, while industrial equipment may require hundreds of amperes. Understanding amperage helps prevent overloading circuits and electrical fires.
Milliampere (mA)
What is a Milliampere (mA)?
A milliampere (symbol: mA) is a unit of electric current equal to one-thousandth of an ampere (0.001 A). The prefix 'milli-' means one-thousandth, making the milliampere a convenient unit for measuring smaller currents in electronic circuits and devices.
Common Uses
- Electronics: Small electronic circuits, sensors, and microcontrollers typically operate in milliamperes
- Battery capacity: Mobile phone batteries are often rated in milliampere-hours (mAh)
- LED circuits: LEDs typically draw 10-30 mA of current
- Medical devices: Portable medical equipment often uses milliampere-level currents
- Low-power devices: Wearables, IoT devices, and other low-power electronics
- Current measurement: Multimeters and ammeters can measure currents in milliamperes
Conversion Context
Milliamperes are particularly useful when dealing with current values that would be cumbersome to express in amperes. For example, expressing 0.05 A as 50 mA is much more readable. The milliampere unit is essential for electronics and low-power applications where currents are typically in the milliampere range.
Amperes to Milliamperes Conversion Table
The conversion of amperes to milliamperes for certain values are provided below:
- Amperes [A]
- Milliamperes [mA]
- 0.001 A
- 1 mA
- 0.01 A
- 10 mA
- 0.1 A
- 100 mA
- 0.5 A
- 500 mA
- 1 A
- 1000 mA
- 2 A
- 2000 mA
- 5 A
- 5000 mA
- 10 A
- 10000 mA
- 20 A
- 20000 mA
- 50 A
- 50000 mA
- 100 A
- 100000 mA
- 200 A
- 200000 mA
- 500 A
- 500000 mA
- 1000 A
- 1000000 mA
