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foot (ft) → inch (in)

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Use our free online converter to convert between units instantly. Enter any value in the field above to get accurate results. No signup or download required—all conversions run in your browser. Our calculator uses standard conversion factors for reliability.

0
ft=in
0.01=0.12
0.1=1.2
1=12
2=24
3=36
5=60
10=120
20=240
50=600
100=1,200
1000=12,000

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Brief explanation: foot to inch

Length conversion multiplies by a factor. Meter is the base unit in the metric system. Kilometer = 1000 m, mile ≈ 1609 m. Foot = 0.3048 m, inch = 2.54 cm. The metric system (km, m, cm, mm) is used worldwide. The imperial system (mi, ft, in, yd) is common in the United States and United Kingdom. When converting, multiply the value by the appropriate factor—for example, to convert km to miles, multiply by 0.621371.

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Common conversion examples: foot to inch

Reference values for quick comparison. Use the converter above for any amount.

  • 1 foot=12 inch
  • 5 foot=60 inch
  • 100 foot=1,200 inch

About the Units

foot (ft)

Definition: A foot (ft) is a unit of length in the imperial and US customary systems. One foot equals 12 inches or exactly 0.3048 meters. It is one of the most common imperial units for measuring height and room dimensions.
History: The foot has ancient origins, likely based on the length of a human foot. Standardization varied by region until the international yard and pound agreement of 1959 defined the foot as exactly 0.3048 meters.
Current use: Feet are used for human height, room dimensions, and altitude in the US and UK. Real estate listings, aircraft altitude, and construction often use feet. The metric system uses meters for equivalent measurements.

inch (in)

Definition: An inch (in) is a unit of length equal to 1/12 of a foot or exactly 2.54 centimeters. It is a fundamental unit in the imperial and US customary systems for small measurements.
History: The inch has been used in England since at least the 7th century. It was historically defined by barleycorns (3 barleycorns = 1 inch). The current definition of 2.54 cm was adopted internationally in 1959.
Current use: Inches are used for screen sizes, tire dimensions, and small measurements in the US and UK. TV and monitor diagonals are often given in inches. Craft and woodworking use inches for precision.

Sources

Conversion factors and unit definitions follow international standards. For authoritative references, see: