Home DIY Calculators
14 tools, each with formula and worked examples
Paint, tile, concrete, lumber, and renovation estimation tools.
Concrete & Masonry· 2
General· 2
Materials· 9
Tile Calculator
Calculate tiles needed for any room with different layout patterns. Supports grid, brick, diagonal, and herrin…
Roofing Calculator
Estimate roofing materials for gable and hip roofs. Calculates squares, shingle bundles, felt rolls, and nails…
Stair Calculator
Design safe stairs with IBC-compliant rise/run calculations. Computes number of steps, riser height, tread dep…
Mulch Calculator
Calculate mulch volume for rectangular and circular garden beds. Compare costs between bagged (2 cu ft) and bu…
Gravel Calculator
Calculate gravel volume in cubic yards and tons for landscaping projects. Choose from pea gravel, crushed lime…
Tile Calculator
Calculate how many tiles you need for any floor or wall. Includes waste percentage for cuts, multiple tile siz…
Mulch Calculator
Calculate cubic yards of mulch, topsoil, compost, gravel, or sand needed for any landscaping project. Shows bu…
Drywall Calculator
Calculate how many sheets of drywall you need for walls and ceiling. Includes screw count, joint compound, tap…
Board Foot Calculator
Calculate board feet of lumber for any project. Shows nominal and actual board foot volumes with dimensional c…