The foot is a unit of length used in imperial and United States customary measurement systems. One international foot is exactly 0.3048 meters.
The foot developed from older body-based measurement traditions. Its modern international value was fixed in 1959.
Measurement system: Imperial and US customary systems. SI equivalent: 1 ft = 0.3048 m.
Foot facts
- Unit name
- Foot
- Symbol
- ft
- Category
- Length
- Measurement system
- Imperial and US customary systems
- SI equivalent
- 1 ft = 0.3048 m
- Common uses
- Architecture, elevations, aviation and site work
Definition of the foot
The foot is a unit of length used in imperial and United States customary measurement systems. One international foot is exactly 0.3048 meters.
Measurement system and SI relationship
Imperial and US customary systems
SI equivalent: 1 ft = 0.3048 m
History of the foot
The foot developed from older body-based measurement traditions. Its modern international value was fixed in 1959.
Where is the foot used?
Architecture, elevations, aviation and site work