Coefficients and Equivalents

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The following appendix have been developed to support Lasting Forests.

While many units of measure have become widely accepted, almost standard, there are often needs to transform measures from the literature into relationships among various parts of the land use and management system. Advice is sought on other measurements and coefficients that are useful and should be added to this table.

Multiply the unit in the left column by the number shown in the center to get the value desired in the right column


Length
Multiply
inches
feet
yards
chains
miles
rods
rods
chains
chains
chains
chains
links
miles
kilometers
nautical miles (knots)
nautical miles
nautical miles
by
2.5400
0.3048
0.9144
20.1168
1.609344
16.5
2.75
100
66
0.020117
7.92
63,360
1000
1.516
1.85325
1
8
To Get...
centimeters
meters
meters
meters
kilometers
feet
fathoms
links (surveyor's chain)
feet
kilometers
inches
inches
meters
miles
kilometers
minutes of arc at equator
furlongs


Area
Multiply
square inches
square feet
square miles
square miles
hectares
hectares
acres
square meters
square miles
acres
townships
square foot quarter girths
square yards
acres
by
6.4516
0.09290
258.9
2.59
0.01
10,000
10
10,000
640
43,560
36
0.1183
0.8361
0.4047
To Get...
square centimeters
square meters
hectares
square kilometers
square kilometers
square meters
square chains
square centimeters
acres
square feet
square miles
square meters
square meters
hectares


Volume
Multiply
gallons
gallons
gallons
liters

cubic feet
cubic feet
cubic feet
cubic feet
cubic meters
cubic meters
cubic meters
cubic inches
bushels
bushels
barrels
barrels
inches of water on 1 acre
soil surface plow
   depth (6.66 inches)
volume of compact soil

cords
by
3.785332
4
0.133681
1

0.8036
0.037
7.48052
0.02832
1.308
35.3145
264.170
0.004329
32
1.24446
4.21
31.5
101.3

2 million
1.2

128
To Get...
liters
quarts
cubic feet
kilograms of pure water at 40 C
    and 760 mm pressure
bushels
cubic yards
gallons
cubic meters
cubic yards
cubic feet
gallons
gallons
dry quarts
cubic feet
cubic feet
gallons
tons

pounds per acre
volumes of same soil when
    excavated or filled
cubic feet (8x4x4)


Weight per Unit Area
Multiply
grams per square yard
pounds per acre
hundredweights per acre
tons per acre
by
11.96
1.120850
125.5
2511
To Get...
kilograms per hectare
kilograms per hectare
kilograms per hectare
kilograms per hectare


Weight per Unit Volume
Multiply
pounds per cubic foot
pounds per gallon
ounces per bushel
by
16.02
0.09978
0.7795
To Get...
kilograms per cubic meter
kilograms per liter
grams per liter


Volume per Unit Area
Multiply
gallons per acre
inches per acre
inches per acre
inches per acre
inches per acre
cubic feet per acre
by
11.23
6,272,640
27,154
3,630
102,788
0.06998
To Get...
liters per hectare
cubic inches
gallons
cubic feet
liters
cubic meters per hectare


Velocity
Multiply
miles per hour
cubic feet per second
gallons per minute
by
1.467
448.8
31,536,000
To Get...
feet per second
gallons per minute
gallons per year


Weight
Multiply
ounces (Avoirdupois)
pounds
hundredweights
hundredweights
long tons
long tons
short tons
short tons
short tons
short tons
stones
stones
pounds
kilograms
kilograms
grains
cubic feet of water
cubic feet of dry muck
cubic feet of dry clay and silt
cubic feet of dry sand
cubic feet of dry loam
cubic yards of soil
cubic meters of soil
by
28.34953
0.45359237
0.05080
1000
1.01605
2240
2000
907.1849
0.89286
0.90718
14
6.35
453.592
1000
2.204622
0.064799
62.4
25-30
68-80
100-110
80-95
2295
3000
To Get...
grams
kilograms
tons
kilograms
metric tons
pounds
pounds
kilograms
long tons
metric tons
pounds
kilograms
grams
grams
pounds
grams
pounds
pounds
pounds
pounds
pounds
pounds
pounds

Note 1 cubic yard of concrete = approx 2000 pounds (1 ton)


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Last revision January 17, 2000.