ft

Everyday

1. The short form of «foot» or «feet», a unit of length in the imperial system; 1 ft = 12 inches, about 30 centimetres. tree →
2. (rare) Short for «feat.» or «featuring» in song titles, usually written «ft.» or «feat.» tree →
3. (in names) «Ft» is short for «Fort» (Ft Worth). tree →

In the lessons

In maths and measurement, especially in the USA and for heights in the UK and Canada (a person 5 ft 4 in tall, a ceiling 8 ft high). Area in square feet (sq ft). Converting: 1 yard = 3 ft. Phrases: «5 ft tall», «square ft», «cubic ft».

Examples

• The room is 12 ft long and 10 ft wide. tree →
• My dad is 6 ft tall. tree →
• The fence is 4 ft high. tree →
• 1 yard = 3 ft, so 2 yards = 6 ft. tree →
• The plane flew at 30,000 ft. tree →
• The rug covers 50 sq ft. tree →

Note

Abbreviation only, not a word you say: read «5 ft» as «five feet». Same for singular and plural (1 ft, 5 ft — no «fts»). Symbol also ′ (5′ 4″ = 5 feet 4 inches). In maths: 1 ft = 12 in; 3 ft = 1 yd; 1 ft ≈ 0.3 m; area of a 12 ft by 10 ft room = 120 sq ft.