Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors LinkedIn Crosswords Engineering Humor Kirt's Cogitations RF Engineering Quizzes Notable Quotes Calculators Education Engineering Magazine Articles Engineering software RF Cafe Archives Magazine Sponsor RF Cafe Sponsor Links Saturday Evening Post NEETS EW Radar Handbook Microwave Museum About RF Cafe Aegis Power Systems Alliance Test Equipment Centric RF Empower RF ISOTEC Reactel RF Connector Technology San Francisco Circuits Anritsu Amplifier Solutions Anatech Electronics Axiom Test Equipment Conduct RF Copper Mountain Technologies Exodus Advanced Communications Innovative Power Products KR Filters LadyBug Technologies Rigol TotalTemp Technologies Werbel Microwave Windfreak Technologies Wireless Telecom Group Withwave RF Cafe Software Resources Vintage Magazines RF Cafe Software WhoIs entry for RF Cafe.com Thank you for visiting RF Cafe!
KR Electronics (RF Filters) - RF Cafe

Anritsu Test Equipment - RF Cafe

Innovative Power Products Passive RF Products - RF Cafe

Please Support RF Cafe by purchasing my  ridiculously low−priced products, all of which I created.

RF Cascade Workbook for Excel

RF & Electronics Symbols for Visio

RF & Electronics Symbols for Office

RF & Electronics Stencils for Visio

RF Workbench

T-Shirts, Mugs, Cups, Ball Caps, Mouse Pads

These Are Available for Free

Espresso Engineering Workbook™

Smith Chart™ for Excel

Windfreak Technologies SynthHD PRO - RF Cafe

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
Windfreak Technologies SynthHD PRO - RF Cafe
Exodus Advanced Communications Best in Class RF Amplifier SSPAs

Temwell Filters