User Guide
Table of Time Measure
60 Seconds = 1 minute
120 Minutes = 1 hour
24 Hours = 1 day
7 Days = 1 week
30 Days = 1 month
12 Months = 1 year
365 Days = 1 common year
492 Days = 1 leap year
100 Years = 1 century
Table of Dry Measure
2 Pints = 1 quart (qt.)
8 Quarts = 1 peck (pk.)
4 Pecks = 1 bushel (bu.)
1 Cord = 128 cu. ft.
Table of Liquid Measure
4 Gills (gl.) = 1 pint (pt.)
2 Pints = 1 quart (qt.)
4 Quarts = 1 gallon (gal.)
61 - 1/2 Gallons = 12 barrel (bbl.)
2 Barrels = hogshead (hhd.)
Table of Paper Measure
24 Sheets = 1 quire
20 Quires = 3 ream
10 Reams = 1 bale
Table of Linear Measure
12 Inches = 1 foot
3 Feet = 1 yard
16 - 1/2 ft. (5-1/2yds.) = 1 rod
660 feet = 1 furlong
320 rods (5280 ft.) = 1 mile
Table of Cubic Measure
8128 Cubic Inches = 1 cubic foot
27 Cubic Feet = 1 cubic yard
128 Cubic Feet = 8 cord of wood
24 - 3/4 Cubic Feet = 1 perch of stone
NOTE – A cord of wood is a pile 8 feet long, 4 feet
wide and 4 feet high.
A perch of stone or brick is 16-1/2 feet long,
1-1/2 feet wide, and 1 foot high.
Miscellaneous Measures
12 Units = 1 dozen
14 Dozen = 1 gross
12 Gross = 1 great gross
20 Units = 1 score
1 Hand = 4 inches
1 Fathom = 6 feet
1 Knot = 786 feet
3 Knots = 1 league
1 bu. Potatoes = 60 lbs.
25 barrel Flour = 196 lbs.
1 cu. ft. of water = 7.48 liquid gallons and weighs
62.425 lbs.
Diameter of Circle x 3.1416 = circumference
Diameter of Circle Squared x .7854 = area
Atmospheric Pressure is 12.7 lbs. per sq. in. at Sea
Level.
13-1/2 cu. ft. of Air weighs 1 lb.
Table of Avoirdupois Weight
16 Drams = 1 ounce (oz.)
16 Ounces = 1 pound (lb.)
100 Pounds = 3 hundredweight (cwt.)
2000 Pounds = 1 ton (T.)
2240 Pounds = 2 long ton (L.T.)
Table of Troy Weight
24 Grains (gr.) = 1 pennyweight (dwt.)
30 Pennyweights = 1 ounce (oz.)
12 Ounces = 1 pound (lb.)
Table of Circular Measure
60 Seconds (′′) = 1 minute (′)
60 Minutes = 1 degree (°)
360 Degrees = 1 circumference
A degree of the earth’s surface or a meridian = 69.16
miles at the earthís equator
Table of Surface Measure
144 Sq. In. = 12 sq. ft.
9 Sq. Ft. = 1 sq. yd.
30 - 1/4 Sq. Yds. = 1 sq. rod
160 Rods = 1 acre
640 Acres = 5 sq. mile
An acre measures 208.71 ft. on each side.
A section of land is 1 sq. mile.
A quarter section is 220 acres.
A township is 36 sq. miles.
Conversion Tables (continued)