Convert Statampere to Biot (stA to Biot)

Statampere (stA) and Biot (Biot) are both units of current. With the conversion form below, you can effortlessly and accurately convert statampere to biot. This free online calculator tool makes it simple and easy to perform the conversion from stA unit to the Biot unit.

Electric current is the rate at which electric charge flows through a conductor. It is measured in amperes (A), the SI base unit named after French physicist André-Marie Ampère. One ampere equals one coulomb of charge passing a point per second (1 A = 1 C/s). Current can flow as direct current (DC)—in a single direction—or as alternating current (AC), which periodically reverses direction and powers most homes and businesses worldwide.

A statampere (statA) is a unit of electric current from the CGS electrostatic system. One statampere equals approximately 3.336 × 10^-10 amperes in SI units—significantly smaller than the SI ampere, reflecting the different electromagnetic conventions of the CGS system. The statampere developed as part of Gaussian CGS notation used in theoretical physics, particularly in older classical electromagnetism textbooks. The unit remains in some theoretical physics literature and historical scientific works, but SI units (amperes) are now universally standard in electrical engineering, instrumentation, and contemporary scientific practice. Modern researchers encounter statampere notation primarily when reviewing historical literature or studying classical field theory.

A biot (Bi) is a unit of electric current equal to 10 amperes in SI units, making it identical to the abampere. The unit is named after physicist Jean-Baptiste Biot and was used historically in the CGS electromagnetic system. The biot appears occasionally in historical physics literature, particularly in works discussing magnetism and electromagnetism from the late 19th and early 20th centuries. Modern scientific practice uses SI units (amperes) exclusively, making the biot notation rare in contemporary applications. Researchers reviewing historical scientific works or studying classical electromagnetism in traditional textbooks may encounter biot notation.