Calculator Palooza offers free online calculators that show their formulas and assumptions, so you can see how every result is worked out. Enter your own numbers and get an answer right away.
Browse calculators
- Construction & Home Improvement Calculators: estimate materials and costs for home and construction projects, from concrete and pavers to roofing and asphalt.
How the calculators work
- Each calculator explains the formulas and assumptions it uses.
- Prices, rates and product figures come from you, such as your own quote or a product label, unless the page says otherwise.
- Results are estimates. Read the Disclaimer and see the Sources page for references.
Need a calculator we do not have
Tell us what you need through the Contact page. You can also learn more about Calculator Palooza.