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Convert feet to mm

Please provide values below to convert foot [ft] to millimeter [mm], or vice versa.

From: foot
To: millimeter


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: A millimeter (symbol: mm) is a unit of length in the International System of Units (SI). It is defined in terms of the meter, as 1/1000 of a meter, or the distance traveled by light in 1/299 792 458 000 of a second.

History/origin: The milli- prefix is one of many metric prefixes. It indicates one thousandth of the base unit, in this case the meter. The definition of the meter has changed over time, the current definition being based on the distance traveled by the speed of light in a given amount of time. The relationship between the meter and the millimeter is constant however. Prior to the current definition, the meter was based on the length of a prototype meter bar. As with all SI units, the definition of the meter is subject to change, and it is possible that a new definition of the meter will be in place in the future.

Foot to Millimeter Conversion Table

Foot [ft]Millimeter [mm]
0.01 ft3.048 mm
0.1 ft30.48 mm
1 ft304.8 mm
2 ft609.6 mm
3 ft914.4 mm
5 ft1524 mm
10 ft3048 mm
20 ft6096 mm
50 ft15240 mm
100 ft30480 mm
1000 ft304800 mm

How to Convert Foot to Millimeter

1 ft = 304.8 mm
1 mm = 0.0032808399 ft

Example: convert 15 ft to mm:
15 ft = 15 × 304.8 mm = 4572 mm

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feet to miles
feet to yards
feet to inches
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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
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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
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