Units Currencies Constants
 Units Home Unit Conversion List Units List Categories Currencies Convert Units SI System Base Units Derived Units Prefixes Numbers Constants Base-N Fractions Time / Decimal Resources Bibliography
Quality Magazine

Techniques to improve quality on the shop floor and in manufacturing planning.

Chemical Engineering

The industry gateway for chemical engineering and plant operations.

Learn the best principles to negotiate the salary you deserve!

NASA Tech Briefs

Innovations developed by NASA and its industry partners in a wide array of fields.

more free magazines

chain (engineer's)
Symbol:  ch
Category:  Length
SI Equivalent:  30.48 m
Dimension
System:  US

Notes
Surveyor's unit of length.
 1 chain (engineer's) = 1/6.6 furlong (US) = 6 rods = 100 feet = 100 links (US)
Convert     ch
1 ch =
 Length Symbol Unit Name 5.75988×1011 a.u., a0, b a.u. of length 3.048×1011 Å angstrom 1.04783×105 arcmin arcmin 2.03746×10-10 AU, UA astronomical unit 3.048×1019 am attometer 3600 barleycorn (UK) 5.75988×1011 a0, b bohr (first Bohr radius) 0.833333 bolt (US cloth) 1.44×104 line (UK) button (UK) 4.8×104 line (US) button (US) 0.164579 cable length (int.) 0.164474 cable length (UK) 0.138889 cable length (US) 1.2×105 caliber, cin caliber (centiinch) 3048 cm centimeter 1.51515 ch chain (Gunter's) 1 ch chain (Ramsden's) 1.51515 ch chain (surveyor's) 66.6667 cubit (UK) 3.048 dam decameter 304.8 dm decimeter 1.08164×1016 re electron classical radius 26.6667 ell 7227.03 ems (pica) 3.048×10-17 Em exameter 16.6667 fath fathom 3.048×1016 fm femtometer 3.048×1016 F, f fermi 5.75988×1011 a0, b, a.u. first Bohr radius 100 ft foot 9.144×104 fr French 0.151515 fur furlong (UK) 0.151515 fur furlong (US) 3.048×10-8 Gm gigameter 300 hd hand (UK) 0.3048 hm hectometer 3.22181×10-24 hubble 1200 in inch 3.048×10-2 km kilometer 9.8779×10-19 kpc kiloparsec 6.31448×10-3 league (Canadian) 5.48596×10-3 leag. (int. naut.) league (int. naut.) 6.31313×10-3 leag. (stat.) league (statute, land) 5.48246×10-3 leag. (UK, naut.) league (UK, naut.) 5.48246×10-3 leag. (US, naut.) league (US, naut.) 1.17674×10-12 light-day 2.82418×10-11 light-hour 1.69451×10-9 light-minute 1.0167×10-7 light-second 3.22181×10-15 ly light-year 1.44×104 line (UK) line (UK) 4.8×104 line (US) line (US) 100 link (engineer's) 151.515 link (Gunter's) 100 link (Ramsden's) 151.515 link (surveyor's) 3.048×10-5 Mm megameter 30.48 m meter 1.2×109 µin microinch 3.048×107 µm micron 1.2×106 mil, thou mil (thou) 4.10694×10-3 mile (geogr.) mile (geographical) 1.89394×10-2 mi (int.) mile (international) 1.64579×10-2 mi (naut., int.) mile (nautical, international) 1.64285×10-2 mi (naut., teleg.) mile (nautical, telegraph) 1.64474×10-2 mi (naut., UK, US) mile (nautical, UK, US) 1.89394×10-2 mi (stat.) mile (statute, land) 1.89394×10-2 mi (survey, US) mile (survey, US) 3.048×104 mm millimeter 3.048×1010 mµ, nm millimicron 133.333 nail (UK) 3.048×1010 nm nanometer 1.64579×10-2 mi (int. naut.) nautical mile (international) 1.64474×10-2 mi (UK, US, naut.) nautical mile (UK, US) 40 pace (UK) 400 palm (UK) 9.8779×10-16 pc parsec 6.06061 rd perch (rod, pole) 3.048×10-14 Pm petameter 7227 pica 3.048×1013 pm picometer 8.6724×104 point (US printer's) 6.06061 rd pole (rod, perch) 3.048×10-6 quadrant 6.06061 rd rod (perch, pole) 5 rope (UK) 133.333 span 3.048×10-11 Tm terameter 1.2×106 thou, mil thou (mil) 3.04737×1014 UX, X X-unit 33.3333 yd yard 3.048×1025 ym yoctometer 3.048×10-23 Ym yottameter 3.048×1022 zm zeptometer 3.048×10-20 Zm zettameter
Glossary