Construction Calculators
Ordering materials is where most DIY and contractor budgets go wrong: buy too little and the job stalls while you make a second trip, buy too much and you're stuck with pallets of leftovers. These construction calculators turn your measurements into the quantities suppliers sell by: cubic yards and tons of gravel or concrete, boxes of flooring and tile, gallons of paint, and bundles and squares of roofing.
Most of them work in US or metric units and add a waste allowance for cuts and breakage, and the Square Footage Calculator handles irregular rooms by adding up several sections. A typical project runs through more than one of them. Measure the area first, then size the base layer with the Gravel or Concrete Calculator, and finish with flooring, tile, or paint. Every result can be shared or printed as a link, so you can take the numbers to the store or send them to your supplier.
- Gravel Calculator
Estimate cubic yards, tons, and bags of gravel for any project.
- Flooring Calculator
Figure out how many boxes of laminate, vinyl, or hardwood flooring to buy.
- Tile Calculator
Estimate tile, boxes, mortar, and spacers for a floor, wall, or shower.
- Paint Calculator
Work out gallons, coats, and estimated cost for any room.
- Roofing Calculator
Estimate roofing bundles, squares, screws, and cost from your roof pitch.
- Square Footage Calculator
Calculate square footage for any room, convert units, and split rent fairly.
- Concrete Calculator
Calculate how much concrete you need for a slab or fence posts.
- Mulch Calculator
Estimate cubic yards and bags of mulch, topsoil, or compost for rectangular and round beds.