None.
There is no equivalence.
An inch is a measure of length or distance in 1-dimensional space while a square foot is a measure of area in 2-dimensional space. The two measure different things and, according to basic principles of dimensional analysis, conversion from one to the other is not valid.
1 inch = 2.54 centimeters1 sqare inch = 6.4516 square centimeters
1 square ft= 144 square inch
One square inch is 1/144 of a square foot.1 square inch = 0.006944 square foot (rounded)1 square foot = 144 square inches
Linear footage is a one dimensional measurment. Board footage is volume. one board foot is 1 inch thick by 12 inches square. 1" x 12" x 12" = 144 cubic inches of wood or one board foot.
Square footage (surface area) of a 36 inch diameter sphere = 4pir2 pi = 3.1416 r = 1/2 X diameter You asked for square footage; so first convert 36 inches to feet 36 inches / 12 inches/foot = 3 feet r = 1/2 X 3 feet = 1.5 feet surface area = 4 X 3.1416 X (1.5 feet)2 = 28 square feet
1 inch = 2.54 centimeters1 sqare inch = 6.4516 square centimeters
1 square ft= 144 square inch
One square inch is 1/144 of a square foot.1 square inch = 0.006944 square foot (rounded)1 square foot = 144 square inches
One square inch is a square that is 1 inch wide and 1 inch tall.
1 square inch = 6.4516 cm2
Linear footage is a one dimensional measurment. Board footage is volume. one board foot is 1 inch thick by 12 inches square. 1" x 12" x 12" = 144 cubic inches of wood or one board foot.
25
If it is an actual square, 1 inch by 1 inch length by width
Square footage (surface area) of a 36 inch diameter sphere = 4pir2 pi = 3.1416 r = 1/2 X diameter You asked for square footage; so first convert 36 inches to feet 36 inches / 12 inches/foot = 3 feet r = 1/2 X 3 feet = 1.5 feet surface area = 4 X 3.1416 X (1.5 feet)2 = 28 square feet
12 square centimeters 1 inch = 2.54 cm Therefore, 1 square inch = 2.54 x 2.54 cm2 = 6.4516 square centimeters.One square inch is equal to 2.54 x 2.54 = 6.4516 square centimetres.
1 inch = 2.54 cm1 inch x 1 inch = 2.54 cm x 2.54 cm = 6.4516 sq.cm. in 1 sq.inch.
2" = .1667 feet, therefor 2"x 6' = .1667'x 6' = 1 square foot