how do i measure how many tiles i will need for a 500 sq/ft space using 18" square tiles any help?

18" = 1.5'. One tile is 1.5 x 1.5, or 2.25 sq. ft. Divide 500 by 2.25, which gives you 222.22, or 223 tiles. Add 10% for cuts and waste, so you will need 245 tiles. Hope this helps.

At least 223.

18" = 1.5'

1.5' x 1.5' = 2.25ft^2

500ft^2 / 2.25ft^2 = 222.2.

But it really depends on a number of things. How far apart the tiles are and the dimensions of the room and how many tiles you have to cut.

I would get about 250 to start.

1 pc = 2.25 sf

500 sf = 222.22 pcs

Do not forget to order extra. 5%-10% is recommended.

take 500 sq. divided by 1.6 that should tell you how many you will need