About
EnoughMath is a free collection of calculators for home projects: concrete, paint, flooring, mulch, roofing, stairs and more. You type your measurements and get a shopping list — bags, gallons, boxes — with waste included.
Why it exists
Most project mistakes at the store come down to math: too few bags to finish a pour, a fifth gallon you didn’t need, a box of flooring short. Each calculator here answers one question well, shows its formula, and lets you change every default to match the product you’re buying.
How it’s built
Every formula is written out on its page, every default number that isn’t pure math links to where it came from, and every calculator is checked by automated tests before it goes live. The methodology page explains how.
How the site is paid for
The calculators are free and always will be. The site may show ads in the future; if it does, they will be clearly labeled and kept away from the calculators themselves.
Contact
Found a mistake or want a calculator we don’t have? Email hello@enoughmath.com.
Last updated .