| 1 Mile = 5280 ft = 1760 yards |
| 1 Nautical Mile = 1.15 Statute Miles |
| 1 Acre = 43,560 Square Feet |
| 1 Gallon of Water = 8.5 Pounds = 231 Cu. In. |
| 1 Cubic Foot of Water = 7.5 Gallons = 62.5 Pounds |
| 1 Cubic Foot of Sand = 100 Pounds |
| 1 Cubic Yard of Sand = 2700 Pounds |
| |
| Board Footage (BF) & Lineal Footage (LF) |
| Where T = thickness (inches) and W = Width (inches) |
| BF = LF x T x W ÷ 12 |
| LF = BF ÷ T ÷ W x 12 |