Boot Key Harbor
"Marathon- the Heart of the Florida Keys"

An On-Line Cruising Guide for the Florida Keys & Cuba
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UNITS OF MEASUREMENT

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LINEAR MEASUREMENTS:

Nautical Measures: U.S. customary system:
1 shot = 90 ft 1 statute mile (sm) = 5280 feet
1 cable = 0.1 nm 1 sm = 1760 yards
10 cables = 1 nm 1 inch = 2.54 centimeters (cm)
1 fathom = 6 feet or 2 yards 1 foot = 0.3048 meters
1 fathom = 1.83 meters 1 foot = 0.17 fathoms
1 nautical mile (nm) = 1.15 statute miles (sm) 1 foot = 0.91 meters
1 nm = 1.852 kilometers (km) 1 statute mile = 1.61 kilometers (km)
1 nm = 10 cables 1 statute mile = 0.87 nautical miles
1 nm = 2025 yards Metric System:
1 nm = 6076.1155 feet 1000 meters = 1 kilometer (km)
1 knot (kt) = 1 nautical mile / hour 1 millimeter (mm) = 0.04 inches
1 knot (kt) = 1.15 statute miles / hour 1 meter = 3.28 feet
1 meter = 1.1 yards
  1 meter = 0.55 fathoms
  1 meter = 0.54 nautical miles
  1 kilometer = 0.62 statute miles

MASS AND WEIGHT:

16 ounces (oz) = 1 pound (lb) 1 long ton = 2240 lbs
1 lb = 0.45 kilograms (kg) 1 kg = 35.27 ozs
1 short ton = 2000 lbs 1 kg = 2.2 lbs

LIQUID MEASURE:

US Customary System: Metric System:
1 gallon = 4 quarts 1 liter = 1000 milliliters (ml)
1 gallon = 8.33 pounds of water 1 liter = 1000 cubic centimeters (cc)
1 pint = 0.47 liters 1000 liters = 10 cubic meters
1 quart = 0.95 liters 1 liter = 33.8 ounces
1 gallon = 3.78 liters 1 liter = 2.1 pints
1 cubic foot = 28.31 liters 1 liter = 1.1 quarts
Miscellaneous: 1 liter = 0.264 gallons
1 cubic foot = 62.4 pounds fresh water 1 liter = 0.0351 cubic feet
1 cubic foot = 64 pounds salt water 1 cubic meter = 264 gallons
1 long ton = 35 cubic feet fresh water 1 cubic meter = 35.3 cubic feet
1 ton (measurement) = 40 cubic feet 1 cubic meter = 1.3 cubic yards
1 ton (register) = 100 cubic feet  
1 barrel (oil) = 42 gallons  
1 ton (oil) = 269 gallons  
1 ton (oil) = 6.4 barrels  

AREA:

1 square foot = 144 square inches 1 square inch = 6.5 square centimeters

BAROMETRIC PRESSURE:

1 inch of mercury = 33.864 millibars 1 millibar = 0.030 inches of mercury

Boot Key Harbor website created and maintained by Capt. Gregory T. Absten, Marathon.  - A Boater's Guide to the Florida Keys & Cuba
Copyright 2000-2008 Gregory T. Absten