Drift Velocity Calculator are physic/math calculator to find drift velocity (average velocity of a particle), current, charge carrier number density or cross-sectional area of a wire fast and easy. Features: - Instant calculation - Result are copy able to other app - Formula are include as reference - Support up to 16 decimal place - Support various unit for each input Drift Velocity Calculator calculate the velocity of any charged particle in a specific material. eg the current speed in a cable. The drift velocity is the average velocity that a particle, such as an electron, attains in a material due to an electric field. It can also be referred to as axial drift velocity. In general, an electron will propagate randomly in a conductor at the Fermi velocity. formula: u = I / (n * A * q) where: u - drift velocity (average velocity of a particle) I - current n - charge carrier number density A - cross-sectional area of a wire q - charge on the charge carrier Thanks for your support and do visit nitrio.com for more apps for your iOS devices.