Plan with fewer surprises

Measure twice.
Order once.

Fast, practical material estimates for homeowners, builders, and landscape projects—without signup, spreadsheets, or guesswork.

Choose a calculatorFree · Instant · Mobile friendly
04812 ft

CONCRETE SLAB

12 × 10 × 4 in
Estimated order1.63 yd³
Includes 10% extra material
Clear formulasUS + metric resultsAdjustable waste factorsNo account required

Calculator library

Start with the material you need.

Every tool explains the math and gives you an order-ready estimate in the units suppliers use.

01

Gravel Calculator

Estimate gravel volume, cubic yards, and tons for driveways, paths, patios, and landscaping projects.

02

Concrete Calculator

Calculate concrete cubic yards, cubic meters, and ready-mix bag quantities for slabs, footings, and pads.

03

Square Footage Calculator

Find square footage and square meters for rooms, walls, floors, lawns, and repeated rectangular areas.

04

Mulch Calculator

Estimate cubic yards and bag quantities of mulch for garden beds, borders, and landscaping projects.

05

Concrete Slab Cost Calculator

Estimate ready-mix concrete volume and material cost for a rectangular slab using a local price per cubic yard.

06

Concrete Block Calculator

Estimate concrete masonry units for a wall, subtract openings, and include an allowance for cuts and breakage.

07

Concrete Slab Materials Calculator

Estimate concrete, gravel base, rebar, form boards, and vapor barrier for a rectangular concrete slab.

08

Gravel Driveway Calculator

Calculate gravel cubic yards, tons, and material cost for a driveway using depth, density, local price, and delivery.

09

Roof Square Footage Calculator

Estimate sloped roof area, roofing squares, and three-tab bundle equivalents from footprint dimensions and roof pitch.

10

Tile Square Footage Calculator

Calculate tile square footage, waste allowance, square meters, and boxes for floors, walls, and repeated rectangular areas.

11

Countertop Square Footage Calculator

Estimate countertop and backsplash square footage from section length, depth, quantity, and a material allowance.

Built for real projects

Useful numbers, with the assumptions in plain sight.

01

Measure

Enter the actual project dimensions and number of matching areas.

02

Adjust

Set depth, material density, local price, and an appropriate waste allowance.

03

Verify

Review the formula and confirm product yield with your local supplier.