About

Home & Yard Calcs is a free collection of materials estimators for common US home projects. Every calculator works in US units (feet, inches, square feet, cubic yards, and standard US bag sizes) and runs entirely in your browser. Nothing you type is sent anywhere.

How the calculators are built

The formula is shown. Every calculator explains its math, with each variable described, so you can check it by hand.
Waste allowances are explicit. Where materials get cut, spilled, or broken, the calculator shows the allowance it adds and lets you change it.
Sources are dated. Product sizes, coverage rates, and other reference figures link to their sources, with the date they were checked.
Each page is reviewed before launch. Every calculator is tested against worked examples before it is published.

These are planning estimates. Always confirm quantities with your supplier and follow product instructions and local codes.

About the author: Drew Kessler

Drew runs the site's tools and reviews each page before launch. Each estimator shows its formula, waste allowances, and dated sources. He's interested in the trades and small business.

Drew Kessler is a pen name used by the Home & Yard Calcs team.