30 millibars = ~0.435 pounds per square inch.
Multiply the two dimensions to get the area. The calculation will give you 900 square inches which is 6.25 square feet.
24 inches = 2 ft 30 inches = 2.5 ft 2 ft x 2.5 ft = 5 square feet.
It is the same as 12 x 30 * 30 which is 8640.
0.00068870524 acre 2.7870912 square meter 4,320 square inch 0.00068870524 acre 2.7870912 square meter 4,320 square inch
12 inches = 1 foot Thus the tiles would be 1 foot square. You therefore need 30 to cover a 30 square foot room.
Tire pressure? Pounds per Square Inch?
Multiply the two dimensions to get the area. In this case the calculations gives you 1200 square inches, divide by 144 to get 8.33 square feet.
A square with a 30-inch diagonal measurement has sides of 21.21 inches in length.
The answer depends on the shape of the 30 square feet area. If it is in the form of a strip that is 5 inches wide and 72 feet long and you don't want mosaics with little offcuts, then you will require 144 tiles.