Free Home Renovation & Project Planning Calculators

Browse free calculators for estimating paint, tile, concrete, brick and block quantities.

• Paint Coverage Estimator — Estimate the volume of paint required for a room's walls, allowing deductions for doors and windows and custom coats.
• Tile & Grout Quantity Estimator — Calculate how many wall or floor tiles you need to buy for a given surface area, including waste allowance, grout, and adhesive.
• Room Area & Flooring Estimator — Easily compute floor area, perimeter, and diagonal dimensions of a rectangular room for flooring purchases.
• Brick & Block Estimator — Estimate how many standard bricks or concrete blocks are needed to build a masonry wall based on its length and height.
• Drawing Scale Converter — Convert paper plan measurements into real-world coordinates and vice-versa based on standard draft scales.
• Concrete Volume Estimator — Calculate concrete volumes for slabs, foundations, or garden footings with a strong planning-only waiver.
• Roof Pitch & Slope Estimator — Determine roof angle, pitch ratios, and estimated rafter lengths from simple height rise and run horizontal spans.
• Construction & Renovation Cost Estimator — Formulate a rough, preliminary budget projection for home renovations or minor extensions based on floor areas and style choices.
• Project Fee Worksheet — Draft rough spatial design budget templates based on standard flat rates, hourly estimation sheets, or percentages of build values.