ROOMS, MATERIALS, AND ORDER QUANTITIES

Home Improvement Calculators

Estimate square footage, flooring, roofing, and gravel quantities with U.S. project units and visible ordering allowances.

Choose a calculator

Open a tool and adjust its assumptions for your situation.

4 tools

Surface area and packages

Measure square feet, then estimate flooring and roofing packages.

Square Footage CalculatorFind room or project area from length, width, and repeated sections.Flooring CalculatorAdd a cutting allowance and estimate whole flooring packages.Roofing CalculatorEstimate roofing order area and package count from measured roof surface.

Bulk landscape material

Convert a rectangular area and depth into gravel cubic yards.

Gravel CalculatorEstimate cubic yards of gravel from rectangular area, depth, and allowance.

Before you use these estimates

These tools estimate quantities only. Verify measurements, product coverage, waste, compaction, structure, code, safety, package sizes, and supplier requirements before purchase or installation.