ESU of current to Milliampere Conversion

Convert between ESU of current and Milliampere quickly and accurately.

From ESU of current

ESU

To Milliampere

How to Convert ESU of current to Milliampere

Conversion Formula

1 ESU = 3E-7 mA

1 mA = 2997924.537 ESU

Example

Convert 15 ESU to mA:

15 ESU = 15 × 3E-7 mA = 0 mA

Unit Information

Learn about the current units you're converting between

ESU of current

ESU

Definition

The ESU (Electrostatic Unit) of current is a unit in the CGS electrostatic system, equal to approximately 3.335641 × 10⁻¹⁰ amperes. It represents an extremely small current and was used in electrostatic measurements and calculations before the adoption of the SI system.

History/Origin

The ESU system was developed as part of the CGS electrostatic system in the late 19th century, providing a coherent set of units for electrostatic measurements. The ESU of current was defined to maintain consistency with other electrostatic units in the system, though it has been largely superseded by the SI ampere.

Current Use

The ESU of current is rarely used in modern practice, having been replaced by the SI ampere. It may appear in historical scientific literature or specialized contexts where CGS electrostatic units are referenced, but contemporary electrical engineering and physics use the ampere and its decimal multiples exclusively.

Multiplier

3E-10

Offset

Milliampere

Definition

The Milliampere (mA) is a unit of electric current equal to one-thousandth of an ampere (0.001 A), representing small current flows. It is widely used in electronics, medical devices, and low-power applications where precise measurement of small currents is essential for circuit design and device operation.

History/Origin

The milliampere became important with the development of electronic devices and medical equipment requiring precise measurement of small currents. The metric prefix "milli" (meaning one-thousandth) was applied to the ampere to create a practical unit for expressing currents in microelectronics, sensors, and low-power electronic circuits.

Current Use

Milliamperes are extensively used in electronics, medical devices, sensors, microcontrollers, and low-power applications. They are essential for measuring battery drain, circuit current consumption, sensor outputs, and the operation of small electronic devices in consumer electronics, medical equipment, and industrial control systems.

Multiplier

0.001

Offset