How much sand per lbs?

[a1wonder]

I was wondering if anyone would have idea how much stand in lbs I would need to do a 90 gal tank I was thinking of purchasing black stand off of a local dealer in winnipeg but I haven't a clue how much I'll need

tank is 48 long 18 wide 24 tall (all in inches)
I'm only looking at maybe an 1.5" or 2" max (this seemed to work well with my other tank.)

Thanks to all that reply

 

[littlefishie]

Usually it's a pound per gallon, but you may want to go with a bit over 100lbs of sand for a deeper bed... 1 pound per gallon got me a 1" depth.

 

[The-Wolf]

for a 1.75" depth of sand you will need
86.94 Lbs

for other depths use this calculator (click aquarium analyzer)
http/www.danios.0catch.com/NEWDANIO/Tankmaster.html

 

[littlefishie]

Weird.. maybe my sand's just screwed up..

 

[a1wonder]

Thanks for the link and both comments.
So let me think
90(rounded)/5 pound bags = 18 bags * 6.50 per bag= eeps 117 maybe I'll use 1:5 ratio with white sand and make a gray tank