Home & DIY tools
2 free home & diy tools — no signup, instant results.
Estimate paint and tile quantities from your room measurements before shopping. Keep the measured area, the product coverage and the allowance for waste separate so you can see why the final purchase quantity is rounded up.
All home & diy tools
Calculate how much paint — and primer, if you need it — a room takes from its wall size, coats, and coverage rate. Free and instant.
Calculate how many tiles you need for a room, including extra for cuts and breakage — free and instant.
Choose a tool for your task
- Paint Calculator
- Estimate wall paint using dimensions, openings, coats and stated coverage. Add primer or a can size when you need a purchase quantity rather than an area estimate.
- Tile Calculator
- Estimate tiles or boxes using floor area, tile dimensions, grout allowance and waste. Add spare tiles when you want matching replacements for later repairs.
Turn room dimensions into a shopping estimate
- Measure the surfaces you will actually cover and use one unit system consistently. Treat an irregular room as measured sections rather than guessing a rectangle.
- Enter the coverage printed on the product. Paint coverage depends on the surface and coats; tile box coverage must match the product you plan to buy.
- Check the waste allowance and rounded package count. Confirm unusual layouts, heavy cuts or porous surfaces with the supplier before ordering.
What these tools can and cannot tell you
These are quantity models, not a visual cutting plan or an assessment of the building. They do not determine substrate condition, waterproofing, structural suitability or labour costs. Keep your measurements and product specifications alongside the result.
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