Statampere to Milliampere Conversion

Convert between Statampere and Milliampere quickly and accurately.

From Statampere

stA

To Milliampere

How to Convert Statampere to Milliampere

Conversion Formula

1 stA = 3E-7 mA

1 mA = 2997924.537 stA

Example

Convert 15 stA to mA:

15 stA = 15 × 3E-7 mA = 0 mA

Unit Information

Learn about the current units you're converting between

Statampere

stA

Definition

The Statampere (stA) is a unit of electric current 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 statampere was part of the CGS electrostatic system developed in the late 19th century, providing units for electrostatic measurements. The prefix "stat" indicates its electrostatic origin, and the unit was defined to maintain consistency with other electrostatic units in the CGS system.

Current Use

The statampere is rarely used in modern practice, having been replaced by the SI ampere. It may occasionally appear in historical scientific literature or specialized contexts where CGS electrostatic units are discussed, but contemporary electrical engineering uses 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