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Essentials of Manufacturing

Information, coverage of important developments and expert commentary in manufacturing.

CNC Machining Design Guide

Optimize your designs, reduce machining time, and lower your costs.

Selecting the Right 3D Printer

Discover how to choose the right 3D printer for your needs and the key performance attributes to consider.

Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

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foot
Symbol:  ft 
Category:  Length 
SI Equivalent:  0.3048 m
Dimension
System:  UK, US, FPS 
 
Notes
This unit was based on the length of the human foot. It is now defined in terms of the meter as exactly 0.3048 m (USMB of 1959 and WMA of 1963).
1 foot= 1/3 yards
 = 12 inches
 = 144 lines (UK)
 = 480 lines (US)
Convert     ft  
1 ft =
Length
  Symbol Unit Name
5.75988×109  a.u., a0, b  a.u. of length 
3.048×109  Å  angstrom 
1047.83  arcmin  arcmin 
2.03746×10-12  AU, UA  astronomical unit 
3.048×1017  am  attometer 
36    barleycorn (UK) 
5.75988×109  a0, b  bohr (first Bohr radius) 
8.33333×10-3    bolt (US cloth) 
144  line (UK)  button (UK) 
480  line (US)  button (US) 
1.64579×10-3    cable length (int.) 
1.64474×10-3    cable length (UK) 
1.38889×10-3    cable length (US) 
1200  caliber, cin  caliber (centiinch) 
30.48  cm  centimeter 
1×10-2  ch  chain (engineer's) 
1.51515×10-2  ch  chain (Gunter's) 
1×10-2  ch  chain (Ramsden's) 
1.51515×10-2  ch  chain (surveyor's) 
0.666667    cubit (UK) 
3.048×10-2  dam  decameter 
3.048  dm  decimeter 
1.08164×1014  re  electron classical radius 
0.266667    ell 
72.2703    ems (pica) 
3.048×10-19  Em  exameter 
0.166667  fath  fathom 
3.048×1014  fm  femtometer 
3.048×1014  F, f  fermi 
5.75988×109  a0, b, a.u.  first Bohr radius 
914.4  fr  French 
1.51515×10-3  fur  furlong (UK) 
1.51515×10-3  fur  furlong (US) 
3.048×10-10  Gm  gigameter 
hd  hand (UK) 
3.048×10-3  hm  hectometer 
3.22181×10-26    hubble 
12  in  inch 
3.048×10-4  km  kilometer 
9.8779×10-21  kpc  kiloparsec 
6.31448×10-5    league (Canadian) 
5.48596×10-5  leag. (int. naut.)  league (int. naut.) 
6.31313×10-5  leag. (stat.)  league (statute, land) 
5.48246×10-5  leag. (UK, naut.)  league (UK, naut.) 
5.48246×10-5  leag. (US, naut.)  league (US, naut.) 
1.17674×10-14    light-day 
2.82418×10-13    light-hour 
1.69451×10-11    light-minute 
1.0167×10-9    light-second 
3.22181×10-17  ly  light-year 
144  line (UK)  line (UK) 
480  line (US)  line (US) 
  link (engineer's) 
1.51515    link (Gunter's) 
  link (Ramsden's) 
1.51515    link (surveyor's) 
3.048×10-7  Mm  megameter 
0.3048  m  meter 
1.2×107  µin  microinch 
3.048×105  µm  micron 
1.2×104  mil, thou  mil (thou) 
4.10694×10-5  mile (geogr.)  mile (geographical) 
1.89394×10-4  mi (int.)  mile (international) 
1.64579×10-4  mi (naut., int.)  mile (nautical, international) 
1.64285×10-4  mi (naut., teleg.)  mile (nautical, telegraph) 
1.64474×10-4  mi (naut., UK, US)  mile (nautical, UK, US) 
1.89394×10-4  mi (stat.)  mile (statute, land) 
1.89394×10-4  mi (survey, US)  mile (survey, US) 
304.8  mm  millimeter 
3.048×108  mµ, nm  millimicron 
1.33333    nail (UK) 
3.048×108  nm  nanometer 
1.64579×10-4  mi (int. naut.)  nautical mile (international) 
1.64474×10-4  mi (UK, US, naut.)  nautical mile (UK, US) 
0.4    pace (UK) 
  palm (UK) 
9.8779×10-18  pc  parsec 
6.06061×10-2  rd  perch (rod, pole) 
3.048×10-16  Pm  petameter 
72.27    pica 
3.048×1011  pm  picometer 
867.24    point (US printer's) 
6.06061×10-2  rd  pole (rod, perch) 
3.048×10-8    quadrant 
6.06061×10-2  rd  rod (perch, pole) 
5×10-2    rope (UK) 
1.33333    span 
3.048×10-13  Tm  terameter 
1.2×104  thou, mil  thou (mil) 
3.04737×1012  UX, X  X-unit 
0.333333  yd  yard 
3.048×1023  ym  yoctometer 
3.048×10-25  Ym  yottameter 
3.048×1020  zm  zeptometer 
3.048×10-22  Zm  zettameter 
Glossary
Essentials of Manufacturing

Information, coverage of important developments and expert commentary in manufacturing.

CNC Machining Design Guide

Optimize your designs, reduce machining time, and lower your costs.

Selecting the Right 3D Printer

Discover how to choose the right 3D printer for your needs and the key performance attributes to consider.

Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.