Thinset Calculator

Estimate bags of thinset mortar to set your tiles.

Tiled area

Coverage per bag

Waste (%)

Price per bag ($)

Thinset bags (bags) 2

Total cost ($) 0

Formula: bags = area ÷ coverage × (1 + waste)

Step-by-step with your numbers:

1. Values used:

2. Tiled area = 120

3. Coverage per bag = 95

4. Waste = 10 %

5. Price per bag = 0 $

7. Thinset bags = 2bags

8. Total cost = 0$

Did we solve your problem today?

Work out how many 50 lb bags of thinset mortar you need. Coverage depends mainly on the trowel notch size you use.

The math behind it

Bags = tiled area ÷ coverage per bag, rounded up, plus waste.

Larger notch trowels apply more mortar and cover less area per bag.

120 ft² with a 1/4 in trowel (~95 ft²/bag) + 10% waste → 2 bags.

Which trowel size?

Use a bigger notch for bigger/heavier tiles — it leaves a thicker bed and covers less area.