Form factor or form-factor may refer to:
Manufacturing
- Form factor (design), an aspect of design which defines and prescribes the size, shape, and other physical specifications of hardware components, particularly in electronics and electronic packaging
- FormFactor (company), a semiconductor test and measurement company, acquired Cascade Microtech in 2016
Scattering theory
- Form factor (quantum field theory), a semi-empirical formula used in effective quantum field theories
- Atomic form factor, or atomic scattering factor, a measure of the amplitude of a wave scattered from an isolated atom
- Electric form factor, the Fourier transform of electric charge distribution in space
- Magnetic form factor, the Fourier transform of an electric current distribution in space
Other sciences
- Form factor (electronics), characterizing the functional form of oscillating signals
- Form factor (radiative transfer) or view factor, the proportion of energy transmitted by that object which can be transferred to another object
- Form factor in timber metrics, referring to tree shape