Concrete
Concrete Calculators
Estimate concrete volume for slabs, footings, piers, and curbs. Every calculator returns cubic yards, bag counts, ready-mix cost, and delivery — with the formulas and mix assumptions spelled out.
Calculators
Concrete
Concrete Slab
Estimate concrete for slabs, patios, and driveways.
Concrete
Concrete Footing
Estimate concrete for strip and pad footings.
Concrete
Sonotube
Concrete for cylindrical Sonotube forms.
Concrete
Concrete Curb
Estimate concrete volume for curbs and edging by length, width, and height.
Concrete
Sidewalk
Estimate concrete for sidewalks, walkways, and paths.
Concrete
Concrete Bags
Convert a project volume into 40, 60, and 80 lb concrete bags.
Coming soon
- Concrete Column Calculator
- Concrete Stairs Calculator
Related guides
concrete · 4 min read
How to Estimate Concrete for a Slab
Cubic yards = area × thickness ÷ 27. Add 10% waste. Over ~1 cubic yard, switch from bags to ready-mix.
Read article
materials · 3 min read
How to Calculate Cubic Yards
A cubic yard is the standard unit for bulk material. Here's the formula and a worked example.
Read article