TileCalculatorsPROFESSIONAL PLANNER
Multi-RoomL-Shape & T-Shape RoomsIslands & Obstacles7 PatternsUFH ZoneLive 2D Preview

Floor Tile Calculator

Calculate exactly how many floor tiles you need. Supports multi-room projects, L-shaped and T-shaped rooms, kitchen islands and obstacles, 7 tile patterns with auto waste %, underfloor heating zones, and a draggable 2D floor preview.

1

Room Sections & Obstacles

Define rooms, shape, and subtract obstacles

Rooms

⁝⁝
🔗
Subtract:
2

Tile & Pattern

Tile size, grout joint, pattern type

Tile Dimensions

Presets:
in
in
pcs

Colors & Styling

Tile Color
#f5f0e8
Cut / Border Tile
#c2a87d
Grout Line Color
#1e293b
3

Extras, Waste & Budget

UFH zones, transitions, waste buffer, pricing

Recommended Floor Buffer0%
$
$
$/ft²
Preview:
2D Floor Map
23.9"×12.0"23.9"×12.0"23.9"×12.0"23.9"×12.0"23.9"×12.0"23.9"×12.0"23.9"×12.0"23.9"×12.0"23.9"×12.0"23.9"×12.0"20.0 ft15.0 ft

Preview Controls

Show Surface Dimensions
Centerlines
Lock Layout (block drag & nudge)

Total Tiles to Buy

75pcs

75 base + 0 waste

Boxes Needed
13boxes

6 tiles per box

Waste Buffer
+0%

0 extra pieces

Estimated Cost
N/A

No prices entered

Visual Blueprint Cuts (Living Room)
70 full / 10 cut

Estimated layout breakdown for the active preview floor map.

Buying Recommendation

Buy 75 floor tiles (13 boxes of 6 pcs). Total net floor area is 300.0 sq ft across 1 room. Includes +0% waste buffer for the Straight Lay pattern.

Cuts Required

10 tiles (12.5%)
0 tilesWidth Cut
12.0 × 24.0 inCut width to 12.0 in
10 tilesLength Cut
24.0 × 12.0 inCut length to 12.0 in
0 tilesBoth Dimensions
12.0 × 12.0 inCut both to 12.0 × 12.0

Save / Share / Export Result

Save Project (Local)

Calculate Next Steps & Materials

Calculate Grout QuantityThinset Coverage CalculatorFull Cost & Budget EstimatorTile Waste CalculatorWall Tile CalculatorMain Tile Calculator Hub

How to Use the Floor Tile Calculator

Follow these 4 steps for an accurate floor tile estimate — from a single room to a multi-room open-plan layout.

1

Define Your Rooms

Enter each room using the Room Sections panel. Give it a name, choose its shape (Rectangle, L-Shape, or T-Shape), and input dimensions. Add multiple rooms for open-plan spaces.

R1R2

Step 1 visualized

2

Subtract Obstacles

Use the Subtract section to remove kitchen islands, pillars, bathtubs, fireplaces, or any built-in fixture. The calculator automatically deducts these from each room's net area.

Island

Step 2 visualized

3

Choose Tile & Pattern

Select your tile size (or enter custom dimensions), pick a layout pattern, and set the grout joint width. Each pattern automatically adjusts the waste percentage.

Step 3 visualized

4

Read Your Results

The calculator shows total tiles, boxes to order, waste buffer, grout bags, thinset bags, and total project cost. Use the per-room breakdown for multi-room orders.

120 TILES

Step 4 visualized

Floor Tile Pattern Waste Guide

Every tile pattern generates different amounts of cut-waste at the edges. The more cuts, the more tiles you need to order. Here's the complete breakdown for floor applications:

PatternWaste %Skill LevelBest For
Straight Lay+0%BeginnerModern, open-plan, large rooms
33% Brick Offset+5%BeginnerClassic floors, avoids H-joints
50% Brick Offset+10%IntermediateContemporary, bold horizontal look
45° Diagonal+15%IntermediateSmall rooms — enlarges space visually
Herringbone+18%AdvancedPremium kitchens, hallways, entryways
Chevron+18%AdvancedDirectional, high-end living spaces
Basketweave+12%IntermediateTraditional, period-style homes

Floor Tile FAQs

How many tiles do I need for a 200 sq ft floor?
With 24×24 tiles (4 ft² each), you need 50 base tiles. Add 10% waste = 55 tiles, rounded up to the nearest box. Use the calculator above with your exact tile size for precision.
How much extra tile should I buy?
Buy 10% extra for straight lay, 15% for diagonal, 18% for herringbone or chevron. Add 5% if you're a first-time installer or if the room has complex angles. Never return opened boxes — always store spares.
How do I calculate an L-shaped or T-shaped room?
Split the room into two rectangles. Calculate each rectangle separately (Length × Width), then add them together. The Floor Tile Calculator L-Shape mode does this automatically — enter Leg 1 and Leg 2 dimensions separately.
What grout joint size should I use for floor tiles?
Rectified tiles: 1/16". Standard floor tiles: 1/8" to 3/16". Large format (18"+): 3/16" to 1/4". Outdoor: 3/8" to 1/2" for drainage and freeze-thaw movement. Use sanded grout for joints wider than 1/8".
Can I tile over existing floor tile?
Yes, if existing tile is fully bonded with no cracks or hollow spots. Check that added height (typically 3/4") won't conflict with door clearances. Use modified thinset and a floor-leveling compound over uneven joints.
What is the correct thinset for large floor tiles?
For tiles with any side ≥ 15 inches, use Large and Heavy Tile (LHT) mortar. Apply to both the substrate and back-butter the tile (dual application method). This prevents hollow spots and edge lippage.

Key Reference

Subfloor Flatness Requirements

Standard tile¼" over 10 ft
Large format (15"+)⅛" over 10 ft
Mosaic / small tile¼" over 10 ft

→ Tile Size Guide

All standard tile sizes and best uses

→ Tile Size Converter

Convert inches to cm, mm, or feet

→ Substrate Compatibility

Match tile to subfloor correctly

→ Tile Pattern Guide

Visual guide to every floor pattern

→ How to Lay Out Tile

Step-by-step floor layout guide

→ Diagonal Tile Calculator

45° diagonal layout tile count

→ Herringbone Calculator

Herringbone tile quantity estimate

→ Tile Layout Planner

Interactive visual floor planner