Home & Construction Calculators
Estimate materials, plan renovations, and calculate construction costs for your projects.
Paint Calculator
Estimate wall area, paintable coverage, and the litres of paint needed from room dimensions, doors, windows, coats, and coverage.
Open Tool →Tile Calculator
Estimate floor area and the number of tiles needed from room dimensions, tile dimensions, and a waste allowance.
Open Tool →Concrete Calculator
Estimate concrete volume in cubic feet and cubic yards and calculate the number of bags from length, width, depth, and bag coverage.
Open Tool →Flooring Calculator
Estimate flooring area and material quantity from room dimensions, plank or tile size, and waste allowance.
Open Tool →Roofing Calculator
Estimate roof surface area and ordering area from building dimensions, pitch factor, and waste allowance.
Open Tool →Fence Calculator
Estimate fence panels, posts, rails, and materials from total length, spacing, gates, and waste assumptions.
Open Tool →Insulation Calculator
Estimate insulation material quantity and coverage from area, target R-value, and product coverage assumptions.
Open Tool →Electricity Bill Calculator
Estimate electricity cost from energy use, tariff rate, fixed charges, and billing period assumptions.
Open Tool →Solar Savings Calculator
Estimate annual solar generation, electricity-bill savings, and simple payback from system size, sun hours, electricity rate, and installation cost.
Open Tool →Electricity Plan Comparison
Compare two electricity plans from usage, variable rate, and fixed charge, then identify the lower modeled cost.
Open Tool →EV Charging Cost Calculator
Estimate charging energy and cost from battery size, charge percentage, electricity rate, and charging efficiency.
Open Tool →About Home & Construction Calculators
Good estimates are what separate a smooth project from a half-finished one. These calculators turn your measurements into order-ready quantities: concrete volume in cubic yards and bags, paint coverage by room size and coat count, tile and flooring amounts with waste allowance, roofing squares, fence materials, and insulation R-values matched to your climate zone. Enter real dimensions, keep the waste factor the calculator suggests, and you will know what to buy before you reach the store.
The same hub covers the energy side of your home. Compare electricity plans on true annual cost instead of headline rates, estimate an electricity bill from appliance usage, model solar savings and payback, and work out what home EV charging actually adds to your bill. Every tool runs instantly in your browser with no sign-up, so you can test several scenarios side by side before committing to a contractor quote or a purchase.