At One Place

Feet to millimeters

1 foot in millimeters
1 ft = 304.8 mm
mm = ft × 304.8

To convert feet to millimeters, multiply by 304.8. The table below gives the values people look up most often, and the converter works for any number.

Feet to millimeters table

Common foot values converted to millimeters.
Feet Millimeters
1 ft 304.8
2 ft 609.6
3 ft 914.4
4 ft 1,219.2
5 ft 1,524
10 ft 3,048
15 ft 4,572
20 ft 6,096
25 ft 7,620
30 ft 9,144
40 ft 12,192
50 ft 15,240
75 ft 22,860
100 ft 30,480
250 ft 76,200
500 ft 152,400
1,000 ft 304,800

How the conversion works

The relationship is mm = ft × 304.8. Both units measure length, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.

Foot: Plural is "feet".

Common questions

How many millimeters are in one foot?
One foot equals 304.8 millimeters. mm = ft × 304.8.
How do you convert feet to millimeters?
Use mm = ft × 304.8. So 10 ft is 3,048 mm.
How many feet are in one millimeter?
One millimeter equals 0.0032808 feet, which is the reverse of the conversion above.
Is there more than one kind of foot?
Plural is "feet".

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked