Home & energy
Plan materials, dimensions and household energy costs.
Browse categories · Home & energy
Home & energy
Plan materials, dimensions and household energy costs.
Materials & dimensions
- Length adding calculator
Add or subtract feet and fractional inches, with metric output.
- Concrete calculator
Estimate slab, footing or cylinder volume and bags from entered yield.
- Tile & patio calculator
Estimate pavers, boxes and cost from area, grout and waste.
- Flooring calculator
Add room areas and estimate packs, waste and material cost.
- Paint calculator
Estimate paint from wall area, openings, coats and entered coverage.
- Mulch & soil calculator
Estimate volume, bag count and cost for a given area and depth.
- Stair geometry calculator
Explore equal risers and treads against your entered design limits.
Useful results. Visible working.
Each calculator includes an example and explains its assumptions. Calculations run in your browser, and you choose what to save.