FormatCalc library
Home improvement
without the noise.
Free home improvement from FormatCalc. Fast, private, and processed entirely in your browser. Choose a tool below to get started—no account or upload required.
Paint Calculator
Estimate paint for the walls and optional ceiling of a rectangular room.
Flooring & Tile Calculator
Estimate floor area, order quantity, and full boxes with an editable waste allowance.
Concrete Slab Calculator
Estimate slab volume, bulk concrete, and whole bags for common mix sizes.
Drywall Calculator
Estimate drywall sheets for room walls and an optional ceiling.
Mulch, Soil & Gravel Calculator
Estimate bulk volume and bags for mulch, soil, gravel, or other loose materials.
Roofing Shingle Calculator
Estimate sloped roof area, roofing squares, and shingle bundles for a simple gable roof.