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How much thinset, grout or leveler do you actually need?

Pick your exact product, enter your area, and get a bag or pail count built from the manufacturer's own technical data sheet, not a generic average.

Browse by material

Thinset mortar Bags per job by trowel notch, for large-format and standard tile mortars. 9 calculators Tile grout Boxes, bags or pails for your tile size, joint width and joint depth. 11 calculators Self-leveling underlayment Bags needed for your floor area and pour thickness. 8 calculators Waterproofing membrane Gallons and pails for showers and floors, coats included. 6 calculators

All product calculators

Thinset mortar Compare all

Custom Custom ProLite Premium 30 lb bag · 45–50 sq ft per bag Custom Custom VersaBond Professional 50 lb bag · 60–67 sq ft per bag Custom Custom VersaBond-LHT 50 lb bag · 42–47 sq ft per bag LATICRETE LATICRETE 253 Gold 50 lb bag · 60–70 sq ft per bag LATICRETE LATICRETE 254 Platinum 50 lb bag · 60–70 sq ft per bag LATICRETE LATICRETE 254 Platinum Plus 25 lb bag · 60–70 sq ft per bag MAPEI Mapei Keraflex Plus 44 lb bag · 38–45 sq ft per bag MAPEI Mapei Ultraflex 2 50 lb bag · 55–65 sq ft per bag MAPEI Mapei Ultraflex 2 LT 50 lb bag · 38–45 sq ft per bag

Tile grout Compare all

Custom Custom CEG-Lite 1 gal unit (Part A 1.3 lb + Part B 9.5 lb) · 1/16–1/2 in joints Custom Custom Fusion Pro 1 gal (3.78 L) pail · 1/16–1/2 in joints Custom Custom Polyblend Plus Sanded Grout 25 lb (11.34 kg) bag · 1/8–1/2 in joints Custom Custom Prism 17 lb (7.71 kg) box · 1/16–1/2 in joints LATICRETE LATICRETE PERMACOLOR Select 20 lb (9.1 kg) base bag + 2 color pods · 1/16–1/2 in joints LATICRETE LATICRETE SPECTRALOCK 1 Pre-Mixed Grout 1 gal (3.8 L) pail · 1/16–3/8 in joints LATICRETE LATICRETE SPECTRALOCK PRO Premium Grout 0.2 gal (0.7 L) Mini unit · 1/16–1/2 in joints MAPEI MAPEI Flexcolor CQ 1 gal (3.79 L) pail · 1/16–3/8 in joints MAPEI MAPEI Kerapoxy CQ 1 gal (3.79 L) kit · 1/16–3/8 in joints MAPEI MAPEI Ultracolor Plus FA 25 lb (11.3 kg) bag · 1/16–3/4 in joints TEC TEC Power Grout 25 lb (11.34 kg) bag · 1/16–1/2 in joints

Self-leveling underlayment Compare all

ARDEX ARDEX K 15 55 lb bag · 30 sq ft at 1/4 in Custom Custom LevelQuik Advance 50 lb bag · 22 sq ft at 1/4 in Custom Custom LevelQuik RS 50 lb bag · 23 sq ft at 1/4 in LATICRETE LATICRETE NXT Level 50 lb bag · 22 sq ft at 1/4 in LATICRETE LATICRETE NXT Level Plus 55 lb bag · 24 sq ft at 1/4 in MAPEI MAPEI Novoplan 2 Plus 50 lb bag · 24 sq ft at 1/4 in MAPEI MAPEI Ultraplan Easy 50 lb bag · 24 sq ft at 1/4 in Henry HENRY 555 LevelPro 40 lb bag · 43 sq ft at 1/8 in

Waterproofing membrane Compare all

Custom Custom RedGard Waterproofing and Crack Prevention Membrane 2 coats · 80 sq ft/gal per coat LATICRETE LATICRETE 9235 Waterproofing Membrane 3 coats · 100 sq ft/gal per coat LATICRETE LATICRETE HYDRO BAN 2 coats · 100 sq ft/gal per coat MAPEI MAPEI Mapelastic AquaDefense 2 coats · 120 sq ft/gal per coat MAPEI MAPEI Mapelastic CI 1 coat · 71 sq ft/gal per coat TEC TEC HydraFlex 2 coats · 100 sq ft/gal per coat

Why product-specific?

Real coverage, per product

Generic calculators use one average coverage number for every brand. Real products differ: a large-and-heavy-tile mortar, a standard modified thinset and a rapid-setting mortar can cover noticeably different areas from the same bag size. Each calculator here uses the coverage table from that product's own technical data sheet and tells you which version and date the numbers come from.

Numbers you can check

Every page shows the formula, the coverage table it uses, and a worked example, so you can check the result yourself. Where we fit a formula to a chart, it is set so it never claims more coverage than the manufacturer prints.

Private by design

All calculations run in your browser; nothing you type is sent to a server. No account, no email, no tracking of what you enter.