Backsplash Tile Calculator
A backsplash tile calculator finds how much tile a kitchen or bathroom backsplash needs by dividing the backsplash area by the area of one tile and adding waste. Backsplashes often use small or mosaic tiles, so waste runs a little higher. Enter your backsplash dimensions and tile size below.
waste default 15 percent for small/mosaic tile.
- Area
- 0 sq ft
- Tile size
- 0 x 0 in
Enter your area and tile size to see how many tiles you need.
Estimate only. Material yields vary by product and brand; check your product label and add a margin.
How Much Tile for a Backsplash?
To calculate backsplash tile, multiply the backsplash length by its height to get the area, then divide by the tile area and add 15 percent waste, since backsplashes use small tiles and have many cut edges around outlets and cabinets. A 10 foot run at 18 inches high is 15 square feet, so plan tile for about 17 square feet with waste. The calculator sizes it from your dimensions and tile choice.
Why Do Backsplashes Need More Waste?
Backsplashes need a higher waste allowance because they are narrow and full of obstacles: outlets, switches, window edges and cabinet lines all create cut tiles. Mosaic sheets and small tiles add more cut points too. Fifteen percent is a safer allowance than the 10 percent used for open floors, which is why the backsplash calculator defaults higher.
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Frequently asked questions
- How much tile do I need for a backsplash?
- Multiply the backsplash length by height for the area, then add 15 percent waste. A 10 foot by 18 inch backsplash needs tile for about 17 square feet.
- How much waste for backsplash tile?
- Use about 15 percent, higher than floors, because backsplashes have many cut edges around outlets, cabinets and windows, plus small or mosaic tiles.