United States Unit of Measure
United States Units of Measure
12 inches
=
1 foot3 feet
=
1 yard5 1/2 yard
=
1 rod40 rod
=
1 furlong8 furlongs (5280 ft)
=
1 statute mile
6 feet
=
1 fathom1000 fathoms (approx.)
(see Misc. Measure)
=
1 nautical mile3 nautical miles
=
1 league
Square Measure
144 square inches
=
1 square foot9 square feet
=
1 square yard30.25 square yards
=
1 square rod160 square rods
=
1 acre640 square acres
=
1 square mile
1728 cubic inches
=
1 cubic foot27 cubic feet
=
1 cubic yard
7.92 inches
=
1 link100 links
=
1 chain
4 gills
=
1 pint2 cups
=
1 pint2 pints
=
1 quart4 quarts
=
1 gallon31.5 gallons
=
1 barrel2 barrel
=
1 hogshead
60 minims
=
1 fluid dram8 fluid drams
=
1 fluid ounce16 fluid ounces
=
1 pint2 pints
=
1 quart4 quarts
=
1 gallon
2 pints
=
1 quart8 quarts
=
1 peck4 peck
=
1 bushel
16 cubic feet
=
1 cord foot8 cord feet
=
1 cord
60 seconds
=
1 minute60 minutes
=
1 hour24 hours
=
1 day7 days
=
1 week4.333 weeks (avg.)
=
1 month12 months (365-366 days)
=
1 year10 years
=
1 decade10 decades
=
1 century
60 seconds
=
1 minute60 minutes
=
1 degree90 degrees
=
1 right angle180 degrees
=
1 straight angle360 degrees
=
1 circle
24 grains
=
1 pennyweight20 pennyweights
=
1 ounce12 ounces
=
1 pound
27 11/32 grains
=
1 dram16 drams
=
1 ounce16 ounces
=
1 pound100 pounds
=
1 short hundredweight20 short hundredweight
=
1 short ton (see Misc. Measure)
20 grains
=
1 scruple3 scruples
=
1 dram8 drams
=
1 ounce12 ounces
=
1 pound
1 nautical mile
=
6080 feet1 international nautical mile
=
1.852 kilometers or
6076.1155 feet1 international air mile
=
1.852 kilometers or
6076.1155 feet1 short ton (U.S. unit)
=
2000 avoirdupois pounds1 long ton (Great Britain unit)
=
2240 avoirdupois poundsSpeed of Light
=
299,792,458 meters/second or
186,282.4 miles/secondLight-year
=
9.46 trillion km (approx.) or
5.88 trillion mi. (approx.)