Free Tile Calculator Online — No Signup Required | SabTools

Walk into any tile showroom in Morbi, Gujarat — the world's second-largest tile manufacturing hub — and the first question the salesperson asks isn't about colour or finish. It's "kitne square feet ka kaam hai?" Most homeowners answer with a vague gesture: "Two bedrooms and a hall, around 800 sq ft." That guess is where ₹15,000–₹40,000 of avoidable spending begins. Order 10% short and your contractor halts work for a week while a fresh batch arrives in a different shade lot. Order 25% extra "just to be safe" on imported Italian marble at ₹450/sq ft and you've burned ₹40,000 on tiles that will sit in a corner of your balcony forever.

The Tile Calculator on SabTools.in is built to take that guesswork out of the equation — for a 12x10 ft bedroom, a shower wall, a kitchen backsplash, or a 2,400 sq ft duplex in Hyderabad. Plug in the room dimensions, the tile size you've shortlisted (say, 600x600mm Kajaria Eternity), the wastage percentage (typically 7–10% for straight layouts, 12–15% for diagonal), and the per-piece or per-sq-ft cost. You get the exact number of boxes to order and the total billable amount before GST.

Why the wastage buffer is non-negotiable in India

Tile wastage in Indian construction isn't a theoretical 2–3% like a textbook would suggest. It compounds from three real sources:

• Cutting waste at edges and corners. A 10x12 ft room laid with 600x600mm (2x2 ft) tiles needs 30 full pieces, but the edge tiles get cut to fit the wall — and the offcuts are usually unusable. Realistic cutting waste: 5–7%.
• Breakage during transport and handling. If your site is in a 4th-floor apartment in Andheri or a row house in Whitefield, expect 2–3% of pieces to crack between the truck and the bedroom floor. Vitrified tiles 800x1200mm are especially prone — one broken tile is roughly a square foot gone.
• Shade variation between batches. This is the silent killer. If you run short by even 8 pieces and reorder a month later, the new batch will almost certainly be a slightly different shade. You can spot the rectangle from across the room. Ordering 10% extra upfront, all from the same batch and shade lot number, is the only fix.

So the standard wastage figure to use is 10% for floor tiles laid in a straight grid, 12–15% for diagonal or herringbone patterns, and 7–8% for plain wall tiles in a bathroom. The calculator applies this on top of the carpet area, not below it.

A worked example: Anil's 2BHK in Pune

Anil booked a 2BHK in Hinjewadi and wants to retile both bedrooms, the living-dining area, and both bathrooms before moving in. He's taken a ₹65L home loan from HDFC at 8.6% — you can run his repayment numbers through the home loan EMI calculator to see his ₹56,800 monthly outflow — and he has roughly ₹2.5L set aside for flooring.

His areas:

• Master bedroom: 12 x 11 ft = 132 sq ft
• Second bedroom: 10 x 10 ft = 100 sq ft
• Living + dining: 18 x 12 ft = 216 sq ft
• Bathroom 1 (floor): 7 x 5 ft = 35 sq ft; (walls up to 7 ft): 168 sq ft
• Bathroom 2 (floor): 6 x 5 ft = 30 sq ft; (walls): 154 sq ft

Anil picks 800x1200mm Somany double-charge vitrified tiles at ₹78/sq ft for the living area and bedrooms (448 sq ft total), and 300x600mm Kajaria glazed wall tiles at ₹52/sq ft for the bathrooms.

Running the floor area through the calculator with 10% wastage: 448 × 1.10 = 493 sq ft to order. Each box of 800x1200mm tiles covers about 15.5 sq ft (2 pieces per box), so he needs 32 boxes. At ₹78/sq ft, his vitrified tile cost is ₹38,454.

For the bathroom walls (322 sq ft) plus floors (65 sq ft) at 8% wastage: 387 × 1.08 = 418 sq ft of wall tile and floor tile combined. At ₹52/sq ft that's ₹21,736.

Tile cost subtotal: ₹60,190. Add 18% GST (vitrified and ceramic tiles fall in the 18% slab) — you can confirm the math with the GST calculator — and the figure climbs to ₹71,024. Then add adhesive (₹12/sq ft for a quality polymer-modified adhesive like Roff or MYK Laticrete), grout, skirting, and labour at ₹35–45/sq ft, and Anil's all-in flooring bill lands around ₹1.85L. Within budget — but only because he didn't over-order.

Tile calculator for shower areas — where most people get it wrong

A shower enclosure isn't a flat rectangle. It's three vertical walls (or two walls plus a glass partition), a sloped floor with a drain, and often a niche cut into one wall for shampoo bottles. Calculating tiles for this needs more care than a bedroom floor.

For a typical 4x4 ft Indian shower stall with walls tiled to 7 ft height:

• Three walls × 4 ft × 7 ft = 84 sq ft of wall tile
• Floor: 4 × 4 = 16 sq ft (use smaller anti-skid tiles, often 300x300mm)
• Subtract the door/entry opening if any
• Add 12% wastage (showers have more cuts around the drain, niche, and plumbing)

For the wall tiles, that's 84 × 1.12 = 94 sq ft. For the floor at 300x300mm anti-skid: 16 × 1.15 = 18.4 sq ft (higher wastage because small tiles have more cuts). The calculator handles each surface separately so you don't conflate floor and wall tile counts — they're priced and ordered independently.

One detail most contractors won't flag: shower walls often need an extra 5% buffer for future repairs. If a tile cracks 3 years later because someone dropped a steel bucket, you'll want spare pieces from the same batch sitting in your loft. Add this buffer mentally on top of the standard wastage.

How tile size affects total cost (and why bigger isn't always cheaper)

Salespeople in tile showrooms in Sarjapur or Kompally will push you toward larger formats — 800x1200mm or 1200x1800mm "GVT" (glazed vitrified tile) — by saying you'll need fewer pieces. That's true. But the per-sq-ft price is also higher, and the wastage is worse for irregular rooms because every cut piece is bigger.

Here's the same 200 sq ft living room costed three ways:

• 600x600mm ceramic at ₹45/sq ft: 200 × 1.10 = 220 sq ft × ₹45 = ₹9,900
• 800x800mm vitrified at ₹62/sq ft: 200 × 1.10 = 220 sq ft × ₹62 = ₹13,640
• 800x1200mm GVT at ₹95/sq ft: 200 × 1.12 = 224 sq ft × ₹95 = ₹21,280

The premium tile costs 2.15x the basic ceramic. For a budget renovation in a tier-2 city like Indore or Coimbatore, ceramic 600x600mm from Orient Bell or Asian Granito is genuinely fine. For a resale-focused property in Gurgaon DLF or Mumbai BKC, the larger-format GVT raises perceived value enough to justify the spend. Run both numbers through the calculator before committing to either.

What the tile calculator doesn't include — and what to add separately

The calculator gives you tile quantity and tile cost. It doesn't include the supporting consumables and labour, which together typically equal or exceed the tile cost itself. For a complete project budget, add:

1. Adhesive or cement: Modern tiling uses tile adhesive (₹400–₹800 per 20kg bag, covers 25–35 sq ft). Old-school cement-sand mortar is cheaper but not recommended for vitrified or large-format tiles. Budget ₹10–15/sq ft.
2. Grout: Epoxy grout from Roff or MYK costs ₹350–₹600 per kg; cement grout is ₹40–₹80/kg. Budget ₹3–5/sq ft for cement, ₹15–20/sq ft for epoxy.
3. Skirting: 100mm high skirting tiles cut from main tile or matching profile. Calculate room perimeter × 0.33 ft × tile rate.
4. Labour: ₹35–₹55/sq ft for floor, ₹50–₹80/sq ft for wall tiling in metros. Tier-2 cities run 30–40% lower.
5. Site protection and cleaning: ₹3,000–₹8,000 for a 2BHK.

If you're costing an entire interior fit-out — flooring plus wall paint plus modular kitchen plus electricals — start with the interior cost estimator for a city-tier-adjusted ballpark, then drill into specifics like tiles, paint, and so on with individual calculators. Pair the tile calculation with the paint calculator to nail down both major surface costs before the contractor walks in with his own (inflated) estimate.

Measuring the room correctly

Garbage in, garbage out. The most common measurement mistake in Indian homes is treating the room as a perfect rectangle when it isn't. Real Indian flats have:

• A wardrobe niche cut into one wall (subtract its floor area only if you're not tiling under the wardrobe — most people don't tile under fixed wardrobes)
• A door opening with a 4-inch threshold
• An attached balcony with a step-down (separate calculation, separate tile usually)
• A column protruding into the room (subtract it)

For irregular rooms, split the floor into two or three rectangles, calculate each separately, and sum them. The plot area calculator handles unit conversions if your builder gives dimensions in metres while your tile vendor quotes in square feet — a frustratingly common mismatch in projects involving NRI buyers or RERA-compliant builders.

A practical tip: measure twice, in the morning before workers arrive, with a metal tape — not the ribbon tape your tailor uses. Note dimensions to the nearest inch. Photograph each wall with the tape visible so you can verify later without revisiting the site.

Negotiation tactics once you know the exact quantity

The moment you walk into a tile shop with a precise number — "I need 32 boxes of Somany 800x1200 GVT in shade VG-4521" — the dynamic shifts. You're no longer browsing; you're buying. Three things to leverage:

• Bulk discount: Most dealers in Morbi, Hyderabad, and Bangalore wholesale markets offer 8–15% off MRP for orders above 25 boxes. Quote competitor prices.
• Free delivery: Within city limits, delivery should be free for orders above ₹25,000. Don't accept ₹500–₹1,500 "transport charges" added to the bill.
• Return of unopened boxes: Get this in writing on the bill. Reputable dealers will refund 70–80% on unopened, undamaged boxes returned within 15 days. This is your safety net for over-ordering.

If you're financing the renovation through a personal loan or topping up your home loan, the EMI calculator will tell you what an extra ₹2L on the principal does to your monthly payment — usually around ₹1,800–₹2,200 over a 20-year tenure at current rates. That math often nudges people toward sensible mid-range tiles instead of premium imports.

When to spend more, when to save

Across hundreds of Indian renovations the pattern is consistent:

• Spend more on: Living room flooring (high foot traffic, guest visibility), master bathroom (resale value, daily use), kitchen counter and backsplash (stain and heat resistance matter).
• Save on: Servant bathroom, utility area, balcony floor, store room. Basic ceramic 600x600 at ₹38–45/sq ft works fine here.
• Match the building's existing standard if you're renovating one flat in a society where all flats use similar specs — going premium beyond what the building supports doesn't add resale value.

The same logic applies to other materials. The brick calculator is useful if you're adding a partition wall or a small extension, and you'll find similar diminishing-returns patterns there too.

Quick reference: tile quantities for common Indian room sizes

• 10x10 ft bedroom (100 sq ft) → 110 sq ft to order with 10% wastage → 7 boxes of 600x600 (16 sq ft/box) or 8 boxes of 800x800 (14.5 sq ft/box)
• 12x12 ft master bedroom (144 sq ft) → 159 sq ft → 10 boxes of 600x600
• 15x18 ft living room (270 sq ft) → 297 sq ft → 19 boxes of 600x600 or 20 boxes of 800x1200
• 5x7 ft bathroom floor (35 sq ft) → 40 sq ft → 9 boxes of 300x300 anti-skid (4.5 sq ft/box)
• 5x7 ft bathroom walls to 7 ft (168 sq ft) → 182 sq ft → 11 boxes of 300x600 wall tile

Use these as a sanity check, but always run your actual room dimensions through the calculator — buildings vary, and a "10x10 bedroom" in a 1990s Mulund flat might be 9'8" × 10'2" in reality.

Open the Tile Calculator and run your own room numbers →