12 inch = one foot
36 inch = three feet
1/36 = 0.0278 = 2.78 percent
To express .25 inch per foot as a percent slope multiply rise over run times 100. This can be expressed rise/run x 100. rise=.25 inch run=12inches. So .25 divided by 12 times 100 equals 2.083 which can be rounded to 2.1 or simply 2% slope
That means the ramp rises 1 inch for every foot traveled. So, if you have a ramp that is 8 feet long it will have 8 inches of rise. If you have 12 inches of rise, then your ramp has to be 12 feet long.
48 feet per hour=48x12 inch per hour=48x12/60 inch per min=9.6 inch per min
Five feet per minute equates to 0.083 feet (about 1 inch) per second.
1.78 sq feet per tile.
In a depth of 20,000 feet there is 5 tons per square inch of pressure.
1" rise per every 12" run
8.07 feet. There are 2.54 cm per inch.
It is 7.83 gallons per inch. .785x4x4x1=12.56 cubic feet. 12.56 cubic feet x 7.48 gallons per cubic foot=93.9 gallons per foot 93.9 gallons per foot / 12 inches per foot =7.83 gallons per inch.
1/8" per foot
There is amount of mass per inch, feet, etc.
1 foot = 12 inches1 inch = 2.54 cm162 feet*12 feet per inch = 1944 inches1944 inches*2.54 inches per cm = 4937,76 cm