whats the formula to figure square ft to yards in concrete?

Answer 1

To determine how much concrete you need for a slab you will need to find the volume of the slab. In most cases this is length times width times depth. Be sure to use the same scale when multiplying. I tend to use feet and convert to yards when ordering concrete as most concrete is sold by the yard (cubic yard actually).

Once you have measured, there are three sites that have calculators to save you time (see links below).


(If you would like to do it yourself):

To convert cubic feet (length x width x depth) to cubic yards divide by 27.

For circles it is a bit trickier: pi (3.14) times the radius squared (radius times radius) times the depth. The radius is half the diameter (distance across the circle).

Never round down in the amount of yards you need.

Answer 2

9 square feet in 1 cubic yard.

(1 cubic yard = 3x3x3 = 27 cubic ft)
(1 sq yd = 9 sq ft.)

Answer 3

multiply LxWxD , D=depth or thikness of concrete, remember that typically a concrete pad is 4 inches thick or .33333 feet which would would be your D factor......then divide by 27.
27 cubic feet = 1 cubic yard.

eg. a 10x10 patio 4 inches thick would be ........1.23 cubic yards.

10' x 10' x .3333' = 33.33 cubic feet
33.33 / 27 =1.23 cubic yards.

hope this helps

Answer 4

length x width x depth= cubic feet

there are 27 cubic feet in one yard of concrete

Answer 5

1 Square m = 1.19599 yds.
10 sq m = 11.9599 yds.

or get a converter :P

Answer 6

Right here: