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Avoirdupois (avdp) Weight (Commercial)
1 pound (lb) =16 ounces = 7000 grains
1 ounce (oz) =16 drams (dr) = 437.5 grains exactly
1 short hundred weight (cwt) = 100 pounds
1 long hundred weight (gross cwt) = 112 pounds
1 short ton (tn) = 2000 pounds
1 long ton (gross tn) = 2240 pounds

 

Apothecaries Weight
1 scruple (s ap) = 20 grains  
1 dram (dr ap) = 3 scruples = 60 grains
1 ounce (oz ap) = 8 drams = 480 grains
1 pound (lb ap) = 12 ounces = 5760 grains

 

Troy Weight
1 pennyweight (dwt) = 24 grains  
1 ounce (oz t) = 20 pennyweight = 480grains
1 pound (lb t) = 12 ounces = 5760 grains

 

Dry Measure
1 U.S. bushel (bu) = 2150.42 cubic inches (in 3)
(British Imperial bushel = 1.0321 U.S. bushels)
1 U.S. bushel = 4 pecks
1 peck (pk) = 4 quarts = 16 pints (pt)
1 quart (qt) = 2 pints  

 

Cubic Measure
1 cubic yard (yd 3) = 27 cubic feet
1 cubic foot (ft 3 ) = 1728 cubic inches(in 3)
1 board foot = 144 cubic inches - 1/12 cubic foot
1 cord (cd) = 128 cubic feet

Avoirdupois - Metric Weight Equivalent


Avoirdupois (commercial) Metric
1 grain = 0.0648 gram (g) = 6.4 milligrams (mg)
1 ounce (oz) = 28.35 grams
1 pound (lb) = 0.454 kilogram (kg) = 454 grams
1 short ton = 0.907 metric ton (t) = 907 kilograms
1 long ton = 1.016 metric ton = 1016 kilograms

Metric - Avoirdupois Weight Equivalents


Metric Avoirdupois (commercial)
1 gram (g) = 15.432 grains
1 gram = 0.035 ounces (oz)
1 kilogram (kg) = 2.205 pounds =35.274 ounces
1 metric ton (t) = 1.102 short ton (t) =2205 pounds (lb)
1 metric ton =0.984 long ton (gross tn) = 2205 pounds

 

Area or Surface
1 square foot (ft 2) = 144 square inches (in 2)
1 square yard (yd 2) = 1.296 square inches
1 acre = 43.560 square feet

 

Length Measures
1 foot (ft) = 12 inches (in)
1 yard (yd) = 3 feet = 36 inches
1 mile (mi) 5280 feet
1 chain (ch) ( Gunters or surveyor s) = 66 feet

Capacities or Volumes


Liquid Measure
1 U.S. gallon (gal) =231 cubic inches exactly
(1 British Imperial gallon = 1.201 U.S. gallons)
60 minims = 1 fluid dram
8 fluid drams (fl dr) = 1 fluid ounce
4 fluid ounces (fl oz) = 1 gill
4 gills (gi) = 1 pint = 16 fluid ounces
2 pints (pt) = 1 quart = 32 fluid ounces
4 quarts (qt) = 1 gallon

Troy-Apothecaries-Avoirdupois-Metric-Weight Equivalents


1 pound troy or apothecaries = 0.823 pounds avoirdupois
= 373.2 grams
1 ounce troy or apothecaries = 1.097 ounce avoirdupois
= 31.103 grams
1 grain troy = 1 grain apothecaries = 1 grain avdp
= 0.065 gram
1 pound avoirdupois = 1.2153 pound troy or apothecaries
1 ounce avoirdupois = 0.9115 ounce troy or apothecaries
1 kilogram (kg) = 2.6792 pounds troy or apothecaries
1 gram (g) = 0.0322 ounce troy or apothecaries

Metric-U.S. Customary Length Equivalents
(1 inch = 25.4 millimeters exactly)


Metric Customary
1 millimeter (mm) = 0.001 meter = 0.03937 inch
1 centimeter (cm) = 10 millimeters = 0.3937 inch
1 decimeter (dm) = 10 centimeters = 3.937 inches
1 meter (m) = 10 decimeters = 39.37 inches
1 dekameter (dam) = 10 meters = 32.808 feet
1 kilometer (km) = 1000 meters = 0.6 mile