Home Project Calculators

Use our free paint calculator to find out exactly how much paint you need for any room. Enter your wall dimensions and get litres, primer, and cans to buy.

Calculate how much interior paint you need for any room. Accounts for doors, windows, coats, coverage, and waste. Get litres and cans instantly.

Calculate exactly how much ceiling paint you need. Enter room dimensions, number of coats, and can size to get litres required and cans to buy.

Calculate how much exterior paint you need for house walls. Enter wall perimeter, height, doors and windows, and get litres plus cans to buy.

Calculate how many rolls of wallpaper you need for any room. Enter room dimensions, roll size, and waste allowance for an accurate roll count.

Calculate how many drywall sheets you need. Enter total wall area, sheet size, and waste allowance to get an accurate sheet count.

Calculate how much baseboard (skirting board) you need for any room. Get total linear metres and number of pieces to buy.

Free laminate flooring calculator. Enter your room dimensions and pack size to find out how many packs of laminate you need, including a waste allowance.

Free vinyl plank flooring calculator. Enter your room size and pack coverage to get the exact number of packs to buy, with waste factored in.

Free tile calculator for floors and walls. Enter your room size, tile size, grout gap, and box size to find out exactly how many tiles and boxes to buy.

Free carpet calculator. Enter your room dimensions and carpet roll width to find out how many square metres and linear metres of carpet to order.

Free underlayment calculator for laminate, vinyl, and wood flooring. Enter your room size and roll coverage to find out exactly how many rolls to buy.

Free concrete slab calculator. Enter slab dimensions and bag size to find out how many cubic metres of concrete you need and how many premix bags to buy.

Calculate how many bags of concrete you need for fence or deck post holes. Enter hole diameter, depth, and the number of posts to get an instant bag count.

Calculate concrete volume and bag count for strip footings or pad foundations. Enter footing length, width, and depth to get an instant result.

Calculate how many cinder blocks (concrete blocks) and mortar bags you need. Enter wall dimensions and block size to get an accurate count.

Calculate how many bags of mortar you need for a brick or block wall. Enter wall dimensions and bag coverage to get an accurate bag count.

Free mulch calculator. Enter your garden bed dimensions and desired depth to find out exactly how many bags of mulch to buy.

Free topsoil calculator. Enter your area dimensions and desired depth to find out how many bags of topsoil you need for a lawn, bed, or levelling job.

Free gravel calculator. Enter area dimensions, depth, and bag size to find out how many bags of gravel or decorative stone you need.

Free sand calculator. Enter area dimensions and depth to find out how many bags of sand you need for paving, levelling, or a sandpit.

Free sod (turf) calculator. Enter your lawn dimensions and roll size to find out exactly how many rolls of sod you need.

Free raised bed soil calculator. Enter the dimensions of your raised garden bed and bag size to find out exactly how many bags of compost or soil mix you need.