Home Project Calculators
Free material estimators for every home improvement project. Get accurate quantities in seconds — no sign-up required.
23 calculators · 5 categories · free, no sign-up
Paint Calculators
- Paint Calculator
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.
- Interior Paint Calculator
Calculate how much interior paint you need for any room. Accounts for doors, windows, coats, coverage, and waste. Get litres and cans instantly.
- Ceiling Paint Calculator
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.
- Exterior Paint Calculator
Calculate how much exterior paint you need for house walls. Enter wall perimeter, height, doors and windows, and get litres plus cans to buy.
Renovation Calculators
- Wallpaper Calculator
Calculate how many rolls of wallpaper you need for any room. Enter room dimensions, roll size, and waste allowance for an accurate roll count.
- Drywall Calculator
Calculate how many drywall sheets you need. Enter total wall area, sheet size, and waste allowance to get an accurate sheet count.
- Baseboard Calculator
Calculate how much baseboard (skirting board) you need for any room. Get total linear metres and number of pieces to buy.
Flooring Calculators
- Laminate Flooring Calculator
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.
- Vinyl Flooring Calculator
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.
- Tile Calculator
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.
- Carpet Calculator
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.
- Underlayment Calculator
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.
Concrete & Masonry Calculators
- Concrete Slab Calculator
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.
- Post Hole Calculator
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.
- Concrete Footing Calculator
Calculate concrete volume and bag count for strip footings or pad foundations. Enter footing length, width, and depth to get an instant result.
- Cinder Block Calculator
Calculate how many cinder blocks (concrete blocks) and mortar bags you need. Enter wall dimensions and block size to get an accurate count.
- Mortar Calculator
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.
Landscaping Calculators
- Mulch Calculator
Free mulch calculator. Enter your garden bed dimensions and desired depth to find out exactly how many bags of mulch to buy.
- Topsoil Calculator
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.
- Gravel Calculator
Free gravel calculator. Enter area dimensions, depth, and bag size to find out how many bags of gravel or decorative stone you need.
- Sand Calculator
Free sand calculator. Enter area dimensions and depth to find out how many bags of sand you need for paving, levelling, or a sandpit.
- Sod Calculator
Free sod (turf) calculator. Enter your lawn dimensions and roll size to find out exactly how many rolls of sod you need.
- Raised Bed Calculator
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.