Conversion Rate
1 ounce/sq. ft.  2,722.5 lbs./acre 
1 ounce/sq. yd.  302.5 lbs./acre
1 ounce/1,000 sq. ft.  2.7 lbs./acre 
1 pound/ 100 sq. ft.  435.6 lbs./acre
1 pound/ 1,000 sq. ft 43.6 lbs./acre 
1 gallon / acre  3 ounce/1,000 sq. ft.
5 gallons/acre  1 pint/ 1,000 sq. ft.
100 gallons/acre  2.5 gallons/1,000 sq. ft. or 1 quart/100 sq. ft. 
100 lbs./acre  2.5 lbs./1,000 sq. ft.


Quick Conversion
1 pint/acre 1 fluid ounce/242 sq. yd.
1 gallon/acre 1 pint/605 sq. yd.
1 lb./acre 1 ounce/605 sq. yd.
1 cwt./acre 0.37 ounce/sq. yd.
1 mph 88 ft./minute
3 mph 1 chain/15 seconds
1 litre/hectare 0.892 lb./acre
1 kilogram/hectare 0.892lb./acre
1 cc/100 liters 0.16fl.ounce/100gallons
125 cc/100 liters 1 pint/100 gallons
1 gm./100liters 1.6 ounce/100 gallons


Area
1 square foot (sq. ft) 144 square inches (sq. inch)
1 square yard (sq. yd.) 9 sq. ft
1 square rod (sq. rd.) 272.25 sq. ft or 30.25 sq. yd.
1 acre 43,560 sq. ft / 4,840 sq.yd./10 sq. chains /160 sq. rd
1 hectare 2.471 acres
1 square mile 640 acres/ 2.59 square kilometers