Help with mixing concrete

[Ben]

Hello,

I need to make a concrete base for my new shed to sit on. I dont understand the online concrete converter. Can someone help?

I need to make a concrete floor that mesaures:
(h) 9.22 ft (w) 4.23 ft (d) 3 inch

How much sand, cement and water do I need?

please reply asap

Thankyou for your time.

[NORMAN]

Ben, if you have readymix concrete plant in your area just pop down there with your measurements and ask the batcher. Over the last 12yrs they would be only be too willing to help me out with an accurate order. CEMEX,HANSONS,TARMAC.