About
What is this concrete calculator site?
It is a set of four free calculators that run in the browser, for common planning questions about concrete in US units. Sides are in feet and inches. Volume is in cubic feet and cubic yards. One cubic yard is 27 cubic feet. Prices, where a page asks for them, are in US dollars. Weight is in pounds and US short tons. A short ton is 2,000 pounds.
Who publishes it?
Abdul Rauf publishes these pages. This is a personal site, not a company. There is no street address, phone number, or professional credential listed here. The public email is r.rauf.rai@gmail.com, on the Contact page. The site does not claim a ranking or an endorsement.
What are the four calculators?
- Concrete Calculator estimates cubic yards for a slab, footing, column, wall, or solid steps, plus an allowance you type, ready-mix cost from prices you type, and bag counts for one documented premixed concrete in 40, 50, 60, and 80 lb bags.
- Concrete Blocks counts concrete masonry units from a wall face, openings, and a nominal block module. The usual face is 16 by 8 inches, mortar joint included.
- Concrete Weight turns a volume and a density in pounds per cubic foot into pounds and US short tons. It starts at 150 lb/ft³, which you can edit.
- Concrete Materials splits a finished volume into loose cement, sand, and coarse aggregate using a mix ratio and a yield factor you type. It does not assign a PSI.
How are the numbers handled?
Each calculator shows the formula beside the result. A starting number that is only an assumption, such as a 5% allowance or 150 pounds per cubic foot, is labeled on that page. A number the page cannot know, such as a supplier price or a materials yield factor, is left blank. Worked examples stay on the calculator pages, next to the source notes for block size, density, and why a materials factor is not filled in.
None of the calculators chooses a slab thickness, a strength class, rebar or wire mesh, or a building-code check. Those decisions stay with you or a qualified professional. The disclaimer states that limit for all four pages.