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Imperial Measurements

English and US measurements and its relationship zu the metric measurements
Unitabbreviationmetric unitconversion factor
1 inch = 10 lines = 1000 mils(") in2,54 cm0,3937"
1 foot = 12 inches(') ft0,3048 m3,281 ft
1 yard = 3 feet = 36 inchesyd0,9144 m1,094 yd
1 fathom = 6 feetfath1,8288 m0,547 fath
1 nautical mile = 6076 feetsm (or NM)1,852 km0,54 sm
1 statute mile = 1760 Yards = 5280 feetstat. mile1,6093 km0,6214 stat. mile
1 furlongfur0,2012 km4,971 fur
1 mile per hourMPH1,6093 km/h0,6214 MPH
1 acre = 4 root = 100 square chain 0,4047 ha2,4711
1 square footsqft0,0929 m²10,7643 sqft
1 square yardsqyd0,9144 m²1,196 sqyd
1 poundlb0,4563 kg2,2046 lb
1 Fahrenheit°F9/5 °C + 32 °F(°F - 32°F)·5/9
1 barrel = 36 gallon (UK) 119,228 dm³8,387·10-3
1 barrel petroleum = 42 gallon (US)barrel p.158,79 dm³6,298·10-3
1 UK gallon = 4 quartUK gall.4,5455 dm³0,22
1 US gallon = 4 quartUS gall.3,7854 dm³0,264
1 quart = 2 pint = 8 gill  = 40 fluid ounce
      1 fl. ounce = 8 fl. drachm = 480 minim

The conversion factor in the last column is a factor, using to convert a given metric unit inversely.
(e.g.: 40.000 km = 0,54 · 40.000 = 21.600 sm)