A foot (ft) is a unit of distance, defined as being equal to 12 inches, or 1/3 of a yard. The foot is typically only used by countries that follow the Imperial system of units, but it is still commonly used in Canada as a measurement of height and in the aviation industry all around the world. It's occasionally used in the energy unit foot pound.
For Further Reading
- Metric Conversions. (2015, Mar.5). Inches to Feet Conversion [Online]. Available: http://www.metric-conversions.org/length/inches-to-feet.htm