Planning a tiling or stone job and not sure how much to order? These free tile and marble calculators do the maths for you — from bathroom walls and floors to grout, adhesive and marble slabs. Enter your measurements, get a clear estimate, and walk into the shop knowing your numbers.

Everything here is free to use, works on your phone, and needs no sign-up. Start with the calculator that matches your job:

• Bathroom Wall Tiles Calculator — new — for wall tiling in bathrooms, room by room and height by height.
• Tile Calculator — tiles and boxes for floors, walls, kitchens and bathrooms.
• Square Feet & Area Calculator — quick area in sq ft for any room or wall.
• Tile Adhesive Calculator — how many adhesive bags you’ll need.
• Grout Calculator — grout quantity from tile size and joint width.
• Marble Calculator — marble area and slab count.
• Cost Estimate Builder — a full, printable material estimate.
• Granite & Marble Measurement Sheet — measure, organise and share on WhatsApp.

Not sure which tool to pick? If you’re tiling a bathroom, start with the Bathroom Wall Tiles Calculator for the walls and the Tile Calculator for the floor. For countertops and flooring in stone, use the Marble Calculator. And when you’re ready to price the whole job, the Cost Estimate Builder ties it all together.

Always add a little extra for cuts, breakage and wastage — most jobs need around 8–10% more than the bare area.

FAQ

Are these calculators really free? Yes. Every calculator on this page is free to use, with no sign-up or download required. They run in your browser on mobile and desktop.

Which calculator should I use for a bathroom? Use the Bathroom Wall Tiles Calculator for the walls and the Tile Calculator for the floor. Between them you’ll get tile and box counts for the whole room.

How do I calculate wall tiles for a bathroom? Measure each wall’s width and height, subtract large openings like doors and windows if you want, and enter your tile size. The Bathroom Wall Tiles Calculator turns that into the number of tiles and boxes to buy.

How much extra tile should I order for wastage? As a rule of thumb, add about 8–10% for straight layouts and a bit more for diagonal or patterned work. The calculators let you factor this in.

Can I estimate adhesive and grout too? Yes. The Tile Adhesive Calculator gives you the number of bags, and the Grout Calculator works out grout quantity from your tile size and joint width.

How do I work out how much marble I need? The Marble Calculator converts your measurements into square feet and estimates the number of slabs, so you can order the right amount of stone.

Do the calculators show prices? They focus on quantities and estimates rather than fixed prices, since rates change by city and brand. Use the Cost Estimate Builder to add your own local rates and print a full quote.

Do these work on a phone? Yes — every tool is mobile friendly and designed to be used on-site while you’re measuring.