Construction & Home
Estimate materials and explore appliance, solar, and battery energy scenarios using explicit measurements and assumptions.
Tools in this collection
- Brick & Block Calculator — Estimate editable masonry units from net wall face area.
- Concrete Calculator — Estimate concrete volume for slabs, footings, columns, and cylinders.
- Electricity Cost Calculator — Estimate appliance electricity use and running costs from watts, daily hours, days, and your own kWh rate, without assuming a local tariff.
- Flooring Calculator — Estimate flooring coverage, packs, perimeter, and optional material cost.
- Home Battery Runtime Calculator — Estimate constant-load battery runtime from nominal capacity, usable capacity, inverter efficiency, and average AC power demand.
- Paint Calculator — Estimate paint for room walls, individual walls, or custom areas.
- Percentage Calculator — Calculate percentages, increases, decreases, and differences for everyday decisions.
- Solar Panel Output Estimator — Estimate daily and period solar energy from array size, average peak sun hours, and a transparent combined system-loss assumption.
- Tile Calculator — Estimate whole tiles and boxes for repeated surfaces and custom areas.
- Unit Converter — Convert common length, mass, temperature, area, volume, and speed units locally.
Material planning boundaries
These tools estimate quantities from dimensions and user-entered coverage or waste allowances.
Verify drawings, manufacturer specifications, local requirements, and professional guidance before purchasing or building.
Related collections
- Business Tools — Price, plan, purchase, quote, and invoice from one practical toolkit.
- Everyday Utilities — Practical date, cooking measure, electricity, code, and percentage tools for everyday tasks.