Masonry Calculators

Concrete, tile, mortar, and stone math — without the head-scratching. Our masonry calculators handle cubic yard conversions, bag counts, rebar grids, tile layouts, thinset coverage, and grout quantities for any project size.

Masonry work rewards precision. Order too little concrete and you're paying a second delivery fee — or worse, leaving a cold joint. Order too much and you've paid for material you don't need. Tile estimates that ignore waste factor lead to mid-job trips to the supplier. Thinset coverage rates that assume ideal conditions leave you short on large-format tile. Every one of these calculators bakes in the waste factors, conversion math, and material yield constants that experienced masons carry in their heads — so you don't have to.

Whether you're pouring a 4×4 shed pad, laying out a master bath floor, or estimating a 50-yard driveway pour, the tools below give you instant, accurate numbers you can take to the supplier or hand to your client. Each calculator includes the underlying formula, a worked example, and a FAQ covering the questions pros hear most often. Save your estimates to the project basket and print a clean summary when you're done.

Masonry is one of the oldest building trades, and the math hasn't changed — only the tools have. Below you'll find a quick reference for the standards we use across our masonry calculators, plus links to deeper guides for specific situations.

Concrete Yield Reference

• 40 lb bag: yields approximately 0.30 cubic feet of cured concrete
• 60 lb bag: yields approximately 0.45 cubic feet
• 80 lb bag: yields approximately 0.60 cubic feet
• 90 lb bag: yields approximately 0.68 cubic feet
• 1 cubic yard: requires 60 bags of 60 lb, or 45 bags of 80 lb
• 1 cubic meter: requires approximately 78 bags of 60 lb, or 59 bags of 80 lb

Tile & Mortar Industry Standards

• TCNA Handbook: Tile Council of North America's specification manual — the industry bible for tile installation methods.
• ANSI A108 / A118: American National Standards for tile installation materials and methods. A118.1 = unmodified thinset; A118.4 = modified thinset; A118.11 = polymer-modified for plywood.
• 95% coverage rule: TCNA requires 95% thinset coverage for interior wet areas and exterior applications. Back-butter large-format tile to achieve this.
• Grout joint minimum: 1/16" for rectified porcelain, 1/8" for standard ceramic, 1/4" for natural stone. Use unsanded grout below 1/8", sanded above.

Common Conversion Factors

• 1 cubic yard = 27 cubic feet = 0.7646 cubic meters
• 1 cubic meter = 35.31 cubic feet = 1.308 cubic yards
• 1 square foot = 0.0929 square meters
• 1 square meter = 10.764 square feet
• 1 inch = 25.4 millimeters = 2.54 centimeters
• 1 foot = 0.3048 meters