Area calculator
Measure one rectangular floor, ceiling, wall or section from its length and width.
Practical calculators for renovation
Plan renovation materials with confidence
Clear estimates based on your measurements and product details. Check the product label before buying.
Start with paint: see how much you need, which whole cans to buy, and what may be left over.
Available now
Measure & plan
- Open calculator
- Open calculator
Wall area calculator
Add rectangular walls and subtract the rectangular openings you enter.
Paint & coatings
- Open calculator
Paint calculator
Estimate paint for one surface, room walls and ceilings, or several areas. Include openings, coats, waste allowance and the can sizes available to you.
- Open calculator
Paint primer calculator
Estimate paint primer from net area, label coverage, coats, waste and optional can sizes.
Tile installation
- Open calculator
Tile calculator
Estimate tile pieces and optional whole packages from area, tile size, waste and package size.
- Open calculator
Tile adhesive calculator
Estimate adhesive from area and one manufacturer-declared consumption or yield.
- Open calculator
Tile grout calculator
Estimate grout from a declared rate or from tile, joint and density details.
Flooring materials planning
- Open calculator
Flooring calculator for area and boxes
Estimate floor covering area and whole boxes from your measured floor area, waste allowance and the selected product's declared coverage per box.
- Open calculator
Underlayment calculator for effective coverage
Estimate underlayment area and whole packs from floor area, additional waste and manufacturer-declared effective installed coverage after required overlaps.
- Open calculator
Baseboard calculator for length and pieces
Estimate baseboard run from a rectangle or measured length. Subtract explicit floor-level gaps, add your reserve and estimate whole stock pieces and packs.
Concrete
- Open calculator
Concrete volume calculator
Estimate concrete for one rectangular fill from length, width and depth. Add your waste allowance and product-declared yield to plan whole packages.
- Open calculator
Concrete slab calculator
Estimate concrete for a rectangular slab with uniform thickness. Subtract separate full-depth rectangular exclusions, add waste and use declared package yield.
- Open calculator
Rectangular concrete column volume calculator
Calculate concrete volume for a count of identical rectangular columns or posts from section width, section length and fill height, then plan packages by declared yield.
Brick & block
- Open calculator
Brick calculator for a wall
Estimate whole bricks for net wall area from the actual brick face, head and bed joints, and your waste allowance. Add units per pack for a purchase count.
- Open calculator
Concrete block calculator
Estimate whole concrete masonry blocks from net wall area, actual block face, explicit head and bed joints, and your waste allowance. Packages need SKU-specific counts.
- Open calculator
AAC block calculator
Estimate AAC blocks for a net wall area from actual block face, explicit head and bed joints, waste and optional units per package. No thin-joint default is assumed.
What’s next
In our plans
We plan to expand Dimensivo with new calculations and bring materials from different calculators together in one place.
Projects and shopping lists
Keep several calculations and one shared material list together.
Room renovation materials calculator
Plan a room renovation
One room, selected jobs, separate material estimates.
Useful numbers, clearly explained
See what the estimate is based on
Your measurements, coverage, coats, openings and waste allowance stay visible alongside the result.
Know what you need — and what to buy
See the calculated requirement and, when you enter package sizes, a practical whole-package recommendation.
No hidden waste allowance
You enter the percentage that fits your material and job; the calculators do not add one for you.
Switch units without changing the measurement
Move between metric and U.S. customary units while the same physical quantity is preserved.