Useful Information

Inches In Decimals of a Foot

Inch Decimal Inch Decimal
1/16 = .0052 1 = .0833
3/32 = .0078 2 = .1667
1/8 = .0104 3 = .2500
3/16 = .0156 4 = .3333
1/4 = .0208 5 = .4167
5/16 = .0260 6 = .5000
3/8 = .0313 7 = .5833
1/2 = .0417 8 = .6667
5/8 = .0521 9 = .7500
3/4 = .0625 10 = .8333
7/8 = .0729 11 = .9167

Metric Conversion Chart

Length Area
1 inch = 25.4 millimeters 1 sq inch = 6.45 sq cm
1 foot = 30.5 centimeters 1 sq foot = 0.093 sq mt
1 yard = 0.9 meters 1 sq yard = 0.84 sq mt
1 mile = 1.6 kilometers 1 sq mile = 2.59 sq km
1 mm = 0.039 inches 1 sq cm = 0.16 sq in
1 cm = 0.39 inches 1 sq mt = 1.2 sq yd
1 meter = 1.09 yards 1 sq km = 0.39 sq mile

Other Useful Units:

1 acre = 0.4 hectares 1 hectare = 2.47 acres
1 peck = 8.8 liters 1 bushel = 35.23 liters
1 barrel (oil) = 159 liters 1 bolt (cloth) = 36.6 meters
1 mph = 1.61 km/hr 1 km/hr = 0.62 mph
1 mpg = 0.425 km/l 1 km/l = 2.35 mpg

Tables of Length and Area
Surveyor’s Measure (length)

7.92 inches = 1 link
25 links = 1 rod or 16 feet
4 rods = 1 chain
10 sq chains = 160 sq rods = 1 acre
640 acres = 1 square mile
80 chains = 1 mile
5280 ft = 1760 yards = 320 rods = 1 mile
1 Gunthers chain = 66 feet

Measure of Surface (area)

144 square inches = 1 square foot
9 square feet = 1 square yard
30.25 square yards = 1 square rod
40 square rods = 1 rood
4 square roods = 1 square area
160 square rods = 1 acre
43,560 square feet = 1 acre
36 square miles = 1 township