All concrete and masonry calculators
Every calculator on the site, grouped by job. Each one works in US or metric units and shows the working behind its answer.
Slabs, yards & bags
- Concrete CalculatorCubic yards and bags of concrete for a slab, patio, pad or round slab, with waste and weight.
- Concrete Bags per Yard CalculatorConvert cubic yards to bags of concrete (40, 50, 60, 80 or 90 lb) and bags back to yards, square feet and pallets.
- Ready-Mix vs Bags CalculatorCompare bagged concrete with a ready-mix truck: yards to order, trucks, bag count, weight and cost.
Cost, weight & conversions
- Yards of Concrete to Square FeetHow many square feet a cubic yard (or any volume) of concrete covers at a given thickness.
- Concrete Weight CalculatorWeight of concrete by volume or slab size: per cubic foot, per yard, per square foot and in tons.
- Concrete Cost CalculatorMaterial cost of a slab or pour with your local ready-mix and bag prices, per cubic yard and per square foot.
- Cement Calculator (Mix Your Own)Bags of portland cement to mix your own concrete from cement, sand and gravel, with the 1:2:3 mix ratio.
Footings, tubes & posts
- Fence Post Concrete CalculatorBags of concrete per post hole for fence, gate, mailbox and chain-link posts, net of the post, gravel and any soil cap.
- Sonotube CalculatorBags of concrete per Sonotube or cardboard tube form by diameter and depth, for one tube or a whole deck.
- Concrete Footing CalculatorConcrete volume for continuous (trench) footings, thickened slab edges and square or rectangular pad footings.
Steps, walls & shapes
- Concrete Steps CalculatorBags and cubic yards of concrete for solid poured steps, with or without a top landing.
- Concrete Column CalculatorConcrete for square, rectangular and round columns and piers, one or many, in yards and bags.
- Concrete Curb CalculatorConcrete for straight curbs, curb and gutter, and landscape edging curbs per linear foot and in total.
- Concrete Countertop CalculatorBags of countertop mix and the finished weight for cast-in-place or precast concrete countertops.
Base & reinforcement
- Gravel Base Under Slab CalculatorTons and cubic yards of crusher run or #57 stone for the compacted base under a concrete slab.
- Rebar CalculatorHow many sticks of rebar for a slab grid at the spacing on your plans, with linear feet, weight and tie count.
- Rebar Weight CalculatorWeight per foot and total weight of #3 to #11 rebar (metric #10 to #36), with diameter and area.
- Wire Mesh CalculatorSheets or rolls of welded wire mesh (6×6 W1.4 or W2.9) for a slab, with laps and weight.
Finishing & curing
- Concrete Cure Time CalculatorHow long to keep new concrete curing, when you can walk or build on it, and what changes in cold or hot weather — from data sheets and NRMCA.
- Concrete Sealer CalculatorGallons of acrylic cure-and-seal or penetrating sealer for a driveway, patio or floor, by texture and number of coats.
- Self-Leveling Concrete CalculatorBags of self-leveling underlayment or concrete resurfacer for a floor or worn slab, by area and average depth.
Block, brick & mortar
- Concrete Block CalculatorHow many concrete blocks (CMU, cinder blocks) for a wall, with courses, blocks per course, mortar bags and waste.
- Brick CalculatorHow many bricks for a wall or veneer — modular, queen, king, Norman and more — with bricks per square foot and mortar.
- Mortar CalculatorBags of mortar mix for concrete block or brick, from Quikrete’s per-bag figures with BIA’s waste allowance.
- Block Fill (Grout) CalculatorGrout or concrete to fill concrete block cores — solid or at a core spacing — in cubic feet and 80 lb bags.
- Fire Pit Block CalculatorHow many wall blocks, bricks or cinder blocks for a round or square fire pit, per course and in total.