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Length Units Conversions
The most common
definition of length is that it is the measurement of the extent of something along its greatest dimension. That,
of course, is for physical entities. Length is also used to describe passing of time, but that is not covered here
(unless you are measuring the length of a timeline chart).Standard units = Meter (m) for metric, foot (ft) for English
| inch | foot | mile | centimeter | meter | kilometer | |
| 1 in = | 1 | 8.333 * 10-2 | 1.578 * 10-5 | 2.540 | 2.540 * 10-2 | 2.540 * 10-5 |
| 1 ft = | 12 | 1 | 1.894 * 10-4 | 30.48 | 0.304 8 | 3.048 * 10-4 |
| 1 mi = | 6.336 * 104 | 5 280 | 1 | 1.609 * 105 | 160 9 | 1.609 |
| 1 cm = | 0.393 7 | 3.281 * 10-2 | 6.214 * 10-6 | 1 | 10-2 | 10-5 |
| 1 m = | 39.37 | 3.281 | 6.214 * 10-4 | 100 | 1 | 10-3 |
| 1 km = | 3.93 7 * 104 | 3 281 | 0.621 * 104 | 105 | 1 000 | 1 |
| Non-Standard Length Units Conversions |
| 1 cable = 720 ft = 219.456 m |
| 1 cable (U.K.) = 608 ft = 185.318 m |
| 1 chain (engineers') = 100 ft = 30.48 m |
| 1 chain (surveyors') = 66 ft = 20.117 m |
| 1 fathom = 6 ft = 1.829 m |
| 1 fermi = 10-15 m |
| 1 furlong = 660 ft = 201.168 m |
| 1 hand = 4 in = 0.101 6 m |
| 1 league (nautical) = 3 nmi = 5 556 m |
| 1 league (statute) = 3 stat mi |
| 1 light year = 9.460 895 2 * 1015 m |
| 1 link (engineers') = 1 ft = 0.304 8 m |
| 1 link (surveyors') = 7.92 in = 0.201168 m |
| 1 myriameter = 10 000 m |
| 1 nautical mile (nmi) = 1 853.184 m |
| 1 pale = 1 perch (linear) = 1 rod = 5.029 2 m |
| 1 pica = 1/6 in (approx.) = 4.217 518 * 10-3 m |
| 1 point = 1/72 in (approx.) = 3.514 598 * 10-4 m |
| 1 span = 9 in = 0.228 6 m |
| 1 astronomical unit (au) = 92 957 130.3 mi = 1.496 * 108 km |
| 1 parsec = 1.917 378 44 * 1013 mi = 3.085 721 50 *1013 km |
Copyright: 1996 - 2026 |
About RF Cafe RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
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