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Convert feet to inches

Please provide values below to convert foot [ft] to inch [in], or vice versa.

From: foot
To: inch


Definition: A foot (symbol: ft) is a unit of length in the imperial and US customary systems of measurement. A foot was defined as exactly 0.3048 meters in 1959. One foot contains 12 inches, and one yard is comprised of three feet.

History/origin: Prior to standardization of units of measurement, and the definition of the foot currently in use, the measurement of the foot was used in many different systems including the Greek, Roman, English, Chinese, and French systems, varying in length between each. The various lengths were due to parts of the human body historically being used as a basis for units of length (such as the cubit, hand, span, digit, and many others, sometimes referred to as anthropic units). This resulted in the measurement of a foot varying between 250 mm and 335 mm in the past compared to the current definition of 304.8 mm. While the United States is one of the few, if not only, countries in which the foot is still widely used, many countries used their own version of the foot prior to metrication, as evidenced by a fairly large list of obsolete feet measurements.

Current use: The foot is primarily used in the United States, Canada, and the United Kingdom for many everyday applications. In the US, feet and inches are commonly used to measure height, shorter distances, field length (sometimes in the form of yards), etc. Feet are also commonly used to measure altitude (aviation) as well as elevation (such as that of a mountain). The international foot corresponds to human feet with shoe size 13 (UK), 14 (US male), 15.5 (US female), or 46 (EU).


Definition: An inch (symbol: in) is a unit of length in the imperial and US customary systems of measurement. An inch was defined to be equivalent to exactly 25.4 millimeters in 1959. There are 12 inches in a foot and 36 inches in a yard.

History/origin: The term "inch" was derived from the Latin unit "uncia" which equated to "one-twelfth" of a Roman foot.

There have been a number of different standards for the inch in the past, with the current definition being based on the international yard. One of the earliest definitions of the inch was based on barleycorns, where an inch was equal to the length of three grains of dry, round barley placed end-to-end. Another version of the inch is also believed to have been derived from the width of a human thumb, where the length was obtained from averaging the width of three thumbs: a small, a medium, and a large one.

Current use: The inch is mostly used in the United States, Canada, and the United Kingdom. It is also sometimes used in Japan (as well as other countries) in relation to electronic parts, like the size of display screens.

Foot to Inch Conversion Table

Foot [ft]Inch [in]
0.01 ft0.12 in
0.1 ft1.2 in
1 ft12 in
2 ft24 in
3 ft36 in
5 ft60 in
10 ft120 in
20 ft240 in
50 ft600 in
100 ft1200 in
1000 ft12000 in

How to Convert Foot to Inch

1 ft = 12 in
1 in = 0.0833333333 ft

Example: convert 15 ft to in:
15 ft = 15 × 12 in = 180 in

Popular Length Unit Conversions

Convert Foot to Other Length Units

feet to meters
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Foot to Decimeter
feet to cm
feet to mm
Foot to Micrometer
Foot to Nanometer
feet to miles
feet to yards
Foot to Light Year
Foot to Break
Foot to Exameter
Foot to Petameter
Foot to Terameter
Foot to Gigameter
Foot to Megameter
Foot to Hectometer
Foot to Dekameter
Foot to Micron
Foot to Picometer
Foot to Femtometer
Foot to Attometer
Foot to Megaparsec
Foot to Kiloparsec
Foot to Parsec
Foot to Astronomical Unit
Foot to League
Foot to Nautical League (UK)
Foot to Nautical League (int.)
Foot to League (statute)
Foot to Nautical Mile (UK)
Foot to Nautical Mile (international)
Foot to Mile (statute)
Foot to Mile (US Survey)
Foot to Mile (Roman)
Foot to Kiloyard
Foot to Furlong
Foot to Furlong (US Survey)
Foot to Chain
Foot to Chain (US Survey)
Foot to Rope
Foot to Rod
Foot to Rod (US Survey)
Foot to Perch
Foot to Pole
Foot to Fathom
Foot to Fathom (US Survey)
Foot to Ell
Foot to Foot (US Survey)
Foot to Link
Foot to Link (US Survey)
Foot to Cubit (UK)
Foot to Hand
Foot to Span (cloth)
Foot to Finger (cloth)
Foot to Nail (cloth)
Foot to Inch (US Survey)
Foot to Barleycorn
Foot to Mil
Foot to Microinch
Foot to Angstrom
Foot to A.u. Of Length
Foot to X-unit
Foot to Fermi
Foot to Arpent
Foot to Pica
Foot to Point
Foot to Twip
Foot to Aln
Foot to Famn
Foot to Caliber
Foot to Centiinch
Foot to Ken
Foot to Russian Archin
Foot to Roman Actus
Foot to Vara De Tarea
Foot to Vara Conuquera
Foot to Vara Castellana
Foot to Cubit (Greek)
Foot to Long Reed
Foot to Reed
Foot to Long Cubit
Foot to Handbreadth
Foot to Fingerbreadth
Foot to Planck Length
Foot to Electron Radius (classical)
Foot to Bohr Radius
Foot to Earth's Equatorial Radius
Foot to Earth's Polar Radius
Foot to Earth's Distance From Sun
Foot to Sun's Radius