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Useful Information Abbreviations

Abbreviations
Weights
Liquid Measure
Length
Square Measure
Cubic Measure
Speed
Rates of Application
Conversion Table
Important Facts
Units of Volume
Units of Length
Units of Area
Millimeters vs. Inches

Abbreviations

• GPA - Gallons per Acre
• PM - Gallons per Minute
• GPH - Gallons per Hour
• NPT - National Pipe Thread
• MPH - Miles per Hour
• PSI - Pounds per Square Inch (gauge pressure)

Weights:

• 16 ounces = 1 pound
• 1 pound = .45 kilogram = 453.6 grams
• 2.2 pounds = 1 kilogram
• 1 gallon water = 8.34 pounds
• 1 cu. ft. water = 62.5 pounds
• 1 hundred weight (cwt) = 100 Ibs.
• 1 ton = 20 cwt = 2000 Ibs.

Liquid Measure:

• 1 fluid ounce = 2 tablespoons = 28.35 grams = 29.6 milliliters or cubic centimeters
• 1 tablespoon = 3 teaspoons
• 1 cup = 8 fluid ounces
• 16 fluid ounces = 1 pint
• 1 pint = .473 liters = 2 cups
• 2 pints = 1 quart
• 8 pints = 4 quarts = 1 gallon
• 1 quart = 2 pints = 32 fluid ounces
• 1 gallon = 4 quarts = 8 pints = 128 fluid ounce

Length:

• 3 feet = 1 yard
• 16.5 feet = 5.5 yards = 1 rod
• 1 mile = 320 rods = 1760 yards = 5280 ft.
• 1 centimeter = .4 inches
• 1 inch = 2.54 centimeter
• 1 meter = 3.3 ft.
• 1 foot = 12 inches = 30.5 centimeter
• 1 foot = .31 meter

Square Measure:

• 1 square feet = 144 square inches
• 9 square feet = 1 square yard
• 1 square rod = 272.25 square feet = 30.25 square yard
• 43,560 sq. feet = 160 sq. rods = 4840 square yards = 1 acre = 209 ft. sq.
• 1 square mile = 640 acres

Cubic Measure:

• 1 cubic foot = 1728 square inches = 29.922 liquid quarts = 7.48 gallons = 62.5 pounds

Speed:

• 1.466 ft. per second = 88 ft. per minute = 1 mph

Rates of Application:

• 1 ounce per sq. ft. = 2722.5 Ibs./acre
• 1 ounce per sq. yard = 302.5 Ibs./acre
• 1 ounce per 100 sq. ft. = 27.2 Ibs./acre
• 1 pound per 100 sq. ft. = 435.6 Ibs./acre
• 1 pound per 1000 sq. ft. = 43.6 Ibs./acre
• 1 gallon per acre = 3 ounces/ 1000 sq. ft.
• 5 gallons per acre = 1 pint/1000 sq. ft.
• 100 gallons per acre = 2.5 gallons/1000 sq. ft. = 1 quart/100 sq. ft.
• 100 Ibs. per acre = 2.5 Ibs./1000 sq. ft.

Conversion Table

• 1 foot = .3 meters
• 1 acre = .405 hectares
• 1 acre = 4047 sq. meters
• 1 yard = .914 meters
• 1 mile = 1.609 kilometers
• 1 quart = .95 liters
• 1 gallon (Imp.) = 4.546 liters
• 1 pint (Imp.) = 568.3 cubic centimeters
• 1 pint = .47 liter
• 1 fluid ounce (Imp.) = 28.41 cubic centimeters
• 1 pound = .454 kilogrammes
• 1 pound/sq. in. = .0689 bar
• 1 bar = 14.51 psi
• 1 gal.(lmp.)/acre = 11.23 liters/hectare
• 1 ft./min = .0183 kilometers/hour
• 1 acre = .405 hectares
• 1 hectare = 2.47 acres
• 1 sq. meter = 2.471 x 10⁴ acres
• 1 meter = 1.094 yards
• 1 kilometer = .621 miles
• 1 liter = .22 gallons (Imp.) 1 liter = 2.1 pints = 1.06 quart
• 1 quart = .95 liter
• 1 gallon = 3.78 liter
• 1 cubic centimeter = 1.75 x 10³ pints (Imp.)
• 1 cubic centimeter = .035 fluid oz. (Imp.)
• 1 kilogramme = 2.205 pounds
• 1 bar = 14.51 pounds/sq. in.
• 1 liter/hectare = .1069 gal./acre
• 1 kilometer/hour = 54.68 feet/min.
• 1 mile per hour = 1.61 kilometer/hour

Important Facts:

• Volume of sphere = diameter³ x .5236
• Diameter = circum. x .31831
• Area of circle = dia.2 x .7854
• Area of ellipse = prod. of both dia. x .785
• Volume of cone = area of base x 1/3 height
• Pressure in psi = height (ft.) x .434
• PPM = percentage x 10,000
• 1% by volume = 10,000 ppm
• 1 kilogram (kg) = 100 grams (g) = 2.2 Ibs.
• 1 gram (g) = 1000 milligrams (mg) = .035 ounce
• 1 liter = 1000 milliliters (ml) or cubic centimeters = 1.058 ~uarts
• 1 milliliter or cubic centimeter = .034 fluid ounce
• 1 milliliter or cubic centimeter of water weighs 1 gram
• 1 liter of water weighs 1 kilogram
• 1 pt. of water weighs approximately 1 Ib.
• 1 part per million (ppm) = 1 milligram/liter = 1 milligram/kilogram = .0001 percent = .013 ounces by in 100 gallons of water
• 1 percent = 10.000 ppm = 10 grams per liter = 10 grams per kilogram = 1.33ounces by weight per gallon of water = 8.34 pounds per 100 gallons of water
• .1 percent = 1000 ppm = 1000 milligrams per liter
• .01 percent = 100 ppm = 100 milligrams per liter
• .001 percent = 10 ppm = 10 milligrams per liter
• .0001 percent = 1 ppm = 1 milligram per liter

Units of Volume

Millimeters vs. Inches

MM	Inches
1 2 3 4 5 6 7	0.03937 0.07874 0.11811 0.15748 0.19685 0.23622 0.27559
8 9 10 11 12 13 14	0.31496 0.35433 0.39370 0.43307 0.47244 0.51181 0.55118
15 16 17 18 19 20 21	0.59055 0.62992 0.66929 0.70866 0.74803 0.78740 0.82677
22 23 24 25 25.4 38.1 50	0.86614 0.90551 0.94488 0.98425 1.0 1.5 1.968
50.8 75 76.2 100 101.6 127 152.4	2.0 2.953 3.0 3.937 4.0 5.0 6.0