4 free tools
Home & DIY
Plan home projects without over-buying: work out the paint for a room, the tiles and boxes for a floor or wall, the concrete for a slab or post holes, and what each appliance adds to your electricity bill.
- Paint CalculatorHow much paint you need for a room, in litres or gallons, and which tins to buy.Popular
- Tile CalculatorHow many floor or wall tiles and boxes to buy, with extra for cuts.
- Concrete CalculatorConcrete volume for a slab, footing or post holes, in m³ or yd³, and bags needed.
- Electricity Cost CalculatorWhat your appliances cost to run per day, month and year, from watts and hours.Popular
Frequently asked questions
Do the calculators work in feet and inches?
Yes. Each one has metric and imperial units.