Calculate tile quantity, flooring area, wastage, adhesive, and total cost for tiles, marble, granite, and vinyl flooring. Supports sq ft and sq m.
How many tiles needed for 100 sq ft floor in India?
For a 100 sq ft room with standard 600×600 mm vitrified tiles: base count = 27 tiles, with 10% wastage = 30 tiles total. For diagonal (45°) layout add 15% = 32 tiles. For 300×300mm bathroom tiles: approximately 119 tiles for 100 sq ft with 10% wastage.
Formula: Tiles = Room Area ÷ Tile Area | Add 10% (straight), 15% (diagonal), 20% (herringbone) wastage | 100 sq ft = 9.29 m²
🏠 Flooring / Tile Calculator
Enter room dimensions and tile size to get exact quantities and cost
In feet or metres (select unit)
In inches (if unit is feet) or mm
Calculation Results
Tiles Required Per 100 Sq Ft — India Standard Tile Sizes (2026)
Straight layout with 10% wastage. Popular tile sizes in Indian homes. 100 sq ft = 9.29 m².
Tile Size
One Tile Area
Tiles (No Wastage)
+10% Wastage
Adhesive (kg)
Grout (kg)
Best For in India
300×300 mm
0.09 m²
108
119
32 kg
13 kg
Bathrooms, small spaces
400×400 mm
0.16 m²
61
68
28 kg
8 kg
Kitchens, utility areas
600×600 mm
0.36 m²
27
30
42 kg
5 kg
Living room, bedroom (most popular)
800×800 mm
0.64 m²
15
17
56 kg
4 kg
Large hall, office floors
300×600 mm
0.18 m²
54
60
35 kg
6 kg
Wall tiles, kitchen dado
600×1200 mm
0.72 m²
14
16
65 kg
3 kg
Premium large format tiles
Adhesive: 4.5 kg/m² for 600mm tiles | Grout: 3mm joint width. Top brands: Kajaria, Somany, Johnson, Orient Bell, Asian Granito.
Frequently Asked Questions — Flooring Calculator
How do I calculate the number of tiles needed for a room?
Measure room length × width to get total area. Divide by the area of one tile. Add 10% for wastage (15% for diagonal layouts). Example: 15ft × 12ft room = 180 sq ft. With 2×2ft tiles (4 sq ft each): 180/4 = 45 tiles + 10% = 50 tiles.
What percentage of wastage should I add for flooring tiles?
Add 10% for straight layouts in regular rooms. Add 15% for diagonal (45°) patterns. Add 20% for complex patterns like herringbone. Add 5–10% extra for bathrooms due to cutting around fixtures. Always buy slightly more than calculated.
How many tiles are needed per square metre?
For 600×600mm tiles: 1 m² ÷ (0.6 × 0.6) = 2.78 tiles. For 300×300mm tiles: 1 m² ÷ (0.3 × 0.3) = 11.11 tiles. For 400×400mm tiles: 1 m² ÷ (0.4 × 0.4) = 6.25 tiles. Always round up to the nearest whole tile.
What is the standard tile size in India?
Common tile sizes in India: 300×300mm for bathrooms, 600×600mm for living rooms and bedrooms, 800×800mm for large spaces, 300×600mm for walls. Vitrified tiles (600×600mm) are the most popular for Indian homes.
How much adhesive is needed for floor tiling?
Tile adhesive consumption depends on tile size and substrate. For 600×600mm tiles on a smooth concrete floor, use approximately 3–4 kg of adhesive per sq metre. For large format tiles (800×800mm and above), use 5–6 kg/m² with back-buttering.
What is the difference between vitrified, ceramic, and porcelain tiles?
Vitrified tiles are fully fired with very low water absorption (< 0.5%) and high durability — best for high-traffic areas. Ceramic tiles are less dense, suitable for walls and low-traffic floors. Porcelain is a type of vitrified tile with the highest hardness, ideal for outdoor and commercial use.
How do I calculate flooring area excluding door area?
Measure the room area normally (length × width). Then subtract the door threshold areas: standard door width is 0.9m × 0.1m = 0.09 m² per door. For practical purposes, door areas are often included in calculations as they result in very small differences.
What is the cost of marble flooring per square foot in India?
Indian marble (Makrana, Rajasthan): ₹60–₹150 per sq ft for material. Imported marble (Italian Carrara): ₹200–₹800+ per sq ft. Installation charges add ₹30–₹60 per sq ft. Total cost including cutting, polishing, and installation can range from ₹100 to ₹1000+ per sq ft depending on quality.
How much sand and cement is needed for tile bedding?
For traditional mortar bed (dry or wet): use a 1:4 cement-sand mix at 40mm thickness. Per sq metre: approximately 11 kg cement and 44 kg sand. For thin-set adhesive: approximately 3–5 kg of polymer tile adhesive per sq metre at 6–10mm thickness.
Can I use this calculator for granite flooring?
Yes. The flooring calculator works for all hard flooring materials — tiles, marble, granite, quartzite, and slate. Enter the area and slab size. Note that granite and marble are typically sold by the slab (not by piece count), so the cost estimate is the most useful output.
How do I calculate tiles for a staircase?
Measure each tread (horizontal surface) and each riser (vertical surface) separately. Tread: width × depth. Riser: width × height. Multiply by number of steps. Add 15% wastage for cuts. Stair nosing (front edge) requires additional cut tiles or bullnose tiles.
What is the grout quantity needed for floor tiling?
Grout consumption depends on tile size and joint width. For 600×600mm tiles with 3mm joints, use approximately 0.5–0.7 kg of grout per sq metre. For 300×300mm tiles with 2mm joints, use approximately 1–1.5 kg/m². Use a grout calculator for precise estimates.
How many boxes of tiles do I need if each box covers 1.5 sq m?
Calculate total area in m² (including wastage). Divide by 1.5 (box coverage). Round up to the next whole number. Example: 25 sq m room + 10% wastage = 27.5 m² ÷ 1.5 = 18.3 → purchase 19 boxes.
Is it better to lay tiles diagonally or straight?
Diagonal (45°) tiling makes a room look wider and is a design choice, but requires 15% more tiles due to cutting. Straight (90°) layout is more economical. For small rooms or bathrooms, diagonal placement can create an illusion of more space.
What floor type is best for Indian homes?
Vitrified tiles are the most popular — durable, low-maintenance, and scratch-resistant. Marble is premium but requires polishing. Granite is hardest and most durable. Wooden/vinyl flooring is gaining popularity for bedrooms. Cement tiles are trending for heritage and rustic looks.
How do I calculate flooring for an L-shaped room?
Divide the L-shape into two rectangles. Calculate area of each rectangle separately. Add the two areas. Apply wastage percentage. Example: 10×8 ft = 80 sq ft + 5×6 ft = 30 sq ft = 110 sq ft total, then add 10% wastage = 121 sq ft of tiles.
What is the life of vitrified tiles vs marble?
High-quality vitrified tiles last 20–30+ years with proper maintenance and no polishing needed. Marble can last 50–100+ years but requires periodic polishing (every 3–5 years) and is prone to staining and etching from acids. Both are excellent choices for Indian climate conditions.
How do I measure irregular-shaped rooms for tiling?
Divide the room into regular rectangles, triangles, or semicircles. Calculate each area separately and sum them. For triangles: 0.5 × base × height. For semicircles: 0.5 × π × r². Always add extra wastage (15–20%) for irregular rooms due to more cuts required.
What is the standard tile joint width in India?
For vitrified tiles: 1.5–3mm joint width. For ceramic tiles: 3–5mm. For stone/marble: 1.5–3mm. Wider joints are more forgiving for uneven tiles. Narrow joints look modern and minimalist. Use matching grout colour for seamless appearance or contrasting grout as a design feature.
How many tiles needed for 1000 sq ft house?
For a 1000 sq ft house, deduct walls, pillars, and areas without flooring (typically 5–10%). Net flooring area ≈ 900–950 sq ft. Add 10% wastage = 990–1050 sq ft. For 2×2 ft tiles (4 sq ft each): approximately 250–265 tiles. For 600×600mm tiles (4 per m²): approximately 93–98 m² = 370–390 tiles.
Tile Buying & Laying Tips for Indian Homes
Expert flooring advice based on Indian climate and construction practices.
💡 Always Buy Extra Tiles
Buy 10% extra tiles beyond calculated quantity. Tile batches differ in shade. Always buy extra from the same batch — future repairs using a different batch will be visibly mismatched.
💡 Vitrified vs Ceramic
Vitrified tiles (water absorption < 0.5%) are best for Indian climate — moisture-proof, scratch-resistant, low maintenance. Ceramic is fine for walls but prone to cracking on floors in temperature extremes.
💡 Tile Adhesive vs Cement Bed
Adhesive is better for large format tiles (600mm+). Traditional cement bed works for smaller tiles. Always use tile adhesive (C1 or C2 grade per IS 15477) for bathrooms to prevent debonding.
💡 Best Tile Brands India
Top ISI-certified brands: Kajaria, Somany, Johnson, Orient Bell, Asian Granito, Nitco. Always check grade AA quality mark for floor tiles. Grade A is for walls only.
