UnitConFeet to Inches Converter
Convert feet to inches for height measurements, construction work, and material sizing. This is a purely US customary conversion that is among the most commonly searched unit conversions online.
Formula
Multiply feet by 12 to get inches. To reverse, divide inches by 12 to get feet.
Quick reference
| Foot (ft) | Inch (in) |
|---|---|
| 1 | 12 |
| 2 | 24 |
| 3 | 36 |
| 4 | 48 |
| 5 | 60 |
| 5.5 | 66 |
| 6 | 72 |
| 6.5 | 78 |
| 8 | 96 |
| 10 | 120 |
About these units
Foot
The foot has been used since ancient civilizations, defined as the length of a human foot. Various regional standards existed until 1959, when the international foot was fixed at 0.3048 meters. The relationship of 12 inches to one foot dates to Roman and Anglo-Saxon usage.
Inch
The inch has been used since at least the 7th century in England, where it was often defined as the length of three barleycorns laid end to end. It was fixed at 1/12 of a foot, and ultimately at exactly 25.4 mm in 1959.
Frequently asked questions
Five feet equals exactly 60 inches, since 5 × 12 = 60.
5 × 12 + 11 = 71 inches total.
72 ÷ 12 = 6 feet exactly.