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Foot (ft) - Unit Information & Conversion

Symbol:ft
Plural:feet
Category:Length

What is a Foot?

Definition

The foot (plural: feet) is a unit of length in the British imperial and United States customary systems of measurement. It is defined as exactly 12 inches or 0.3048 meters.

History

The foot has been used as a unit of length since antiquity, often based on the length of a human foot. Its exact length varied significantly over time and location until the international agreement in 1959 defined it precisely in terms of the meter.

Common Uses

  • Human Height: Measuring human height in the US and UK.
  • US Dimensions: Measuring room dimensions, furniture sizes, and building layouts in the US.
  • Aviation: Aviation altitude measurements (globally).
  • US Construction: Construction and surveying in the US.
  • Sports Fields: Describing lengths in sports fields (e.g., American football).

Unit FAQs

How many inches are in a foot?

There are exactly 12 inches (in) in 1 foot (ft).

How many feet are in a yard?

There are exactly 3 feet (ft) in 1 yard (yd).

How many feet are in a mile?

There are exactly 5,280 feet (ft) in 1 mile (mi).

Foot Conversion Formulas

To Meter:

1 ft = 0.3048 m
Example: 5 feet = 1.524 meters

To Kilometer:

1 ft = 0.000305 km
Example: 5 feet = 0.001524 kilometers

To Hectometer:

1 ft = 0.003048 hm
Example: 5 feet = 0.01524 hectometers

To Decimeter:

1 ft = 3.048 dm
Example: 5 feet = 15.24 decimeters

To Centimeter:

1 ft = 30.48 cm
Example: 5 feet = 152.4 centimeters

To Millimeter:

1 ft = 304.8 mm
Example: 5 feet = 1524 millimeters

To Inch:

1 ft = 12 in
Example: 5 feet = 60 inches

To Yard:

1 ft = 0.333333 yd
Example: 5 feet = 1.666667 yards

To Mile:

1 ft = 0.000189 mi
Example: 5 feet = 0.000947 miles

To Nautical Mile:

1 ft = 0.000165 NM
Example: 5 feet = 0.000823 nautical miles

To Micrometer:

1 ft = 304800 μm
Example: 5 feet = 1524000 micrometers

To Nanometer:

1 ft = 304800000 nm
Example: 5 feet = 1524000000 nanometers

To Light Year:

1 ft = 3.2216e-17 ly
Example: 5 feet = 1.6108e-16 light years

To Astronomical Unit:

1 ft = 2.0374e-12 AU
Example: 5 feet = 1.0187e-11 astronomical units

To Parsec:

1 ft = 9.8778e-18 pc
Example: 5 feet = 4.9389e-17 parsecs

To Angstrom:

1 ft = 3048000000 Å
Example: 5 feet = 15240000000 angstroms

To Point (Typography):

1 ft = 863.999456 pt
Example: 5 feet = 4319.997279 points

To Mil/Thou:

1 ft = 12000 mil
Example: 5 feet = 60000 mils

To Fathom:

1 ft = 0.166667 fath
Example: 5 feet = 0.833333 fathoms

To Furlong:

1 ft = 0.001515 fur
Example: 5 feet = 0.007576 furlongs

To Link (Gunter's):

1 ft = 1.515152 li
Example: 5 feet = 7.575758 links

To Pace:

1 ft = 0.4 pace
Example: 5 feet = 2 paces

To Span:

1 ft = 1.333333 span
Example: 5 feet = 6.666667 spans

To Digit:

1 ft = 16 digit
Example: 5 feet = 80 digits

To Cable Length:

1 ft = 0.001646 cb
Example: 5 feet = 0.008229 cable lengths

To Ell:

1 ft = 0.266667 ell
Example: 5 feet = 1.333333 ells

To Finger:

1 ft = 2.666667 finger
Example: 5 feet = 13.333333 fingers

To Roman Mile:

1 ft = 0.000206 m.p.
Example: 5 feet = 0.00103 Roman miles

To Stadion:

1 ft = 0.001648 stadion
Example: 5 feet = 0.008238 stadia

To Chi (Chinese):

1 ft = 0.914491 chi
Example: 5 feet = 4.572457 chi

To Shaku (Japanese):

1 ft = 1.005941 shaku
Example: 5 feet = 5.029703 shaku

To Li (Chinese):

1 ft = 0.00061 li
Example: 5 feet = 0.003048 li

To Toise:

1 ft = 0.156388 toise
Example: 5 feet = 0.781939 toise

To Bolt:

1 ft = 0.01 bolt
Example: 5 feet = 0.05 bolts

To Rope:

1 ft = 0.05 rope
Example: 5 feet = 0.25 ropes

To Smoot:

1 ft = 0.179104 smoot
Example: 5 feet = 0.895522 smoots

To Sajene:

1 ft = 0.142857 sajene
Example: 5 feet = 0.714286 sajenes

To Ken:

1 ft = 0.167657 ken
Example: 5 feet = 0.838284 ken

To Wa:

1 ft = 0.1524 wa
Example: 5 feet = 0.762 wa

To Vara:

1 ft = 0.363636 vara
Example: 5 feet = 1.818182 varas

To Aln:

1 ft = 0.513131 aln
Example: 5 feet = 2.565657 alnar

To Cubit (Royal/Egyptian):

1 ft = 0.582792 cubit
Example: 5 feet = 2.913958 cubits

To Versta:

1 ft = 0.000286 versta
Example: 5 feet = 0.001429 versts

To Arpent:

1 ft = 0.005213 arpent
Example: 5 feet = 0.026064 arpents

To Ri (Japanese):

1 ft = 0.000078 ri
Example: 5 feet = 0.000388 ri

To Klafter:

1 ft = 0.160717 klafter
Example: 5 feet = 0.803586 klafter

To Yojana:

1 ft = 0.000023 yojana
Example: 5 feet = 0.000113 yojanas

To Skein:

1 ft = 0.002778 skein
Example: 5 feet = 0.013889 skeins

Convert Foot

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Foot Quick Info

ft
Symbol:ft
Category:Length
System:Imperial/US Customary
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