CalcCoverageWhy CalcCoverage answers in shopping units
Most calculators stop at the maths: “you need 2.31 cubic yards.” Nobody can buy 2.31 of anything. Every calculator here finishes the job — bags in the sizes the store actually sells, cubic yards for the delivery truck, gallons plus quarts for paint, boxes for tile — with the waste allowance the pros add shown openly on the result, never hidden inside the number.
Imperial and metric, your choice
Working in feet and inches, or meters and centimeters? Use the Imperial / Metric switch at the top of any page — the site remembers your choice, and every result shows the other system alongside, so you can order in the supplier's units and check in yours.
Built by the CalcCoverage team
CalcCoverage is made and maintained by a small independent team. Every formula is the standard one used in the trade, printed on the page with a worked example, so you can check the maths before you spend money on it. Found something off? Tell us from the contact page — fixing a number is our favourite kind of email.