Concrete Calculators
Professional concrete estimation tools for residential and commercial pours. Calculate volume in cubic yards and cubic meters, bag counts for all standard sizes, and total weight for delivery planning.
Slab
Rectangular slabs, patios, driveways, sidewalks
Footing
Pier holes, deck footings, fence post foundations
Rebar
Rebar quantity, spacing, weight, and ties for slabs
Block Fill
CMU blocks, mortar, and grout fill for walls
Mix Ratio
Cement, sand, and gravel quantities by mix ratio
Steps
Staircases with optional landing extensions
Column
Round and square structural columns
Wall
Walls with door and window opening deductions
Tube Form
Cardboard tube forms (Sonotubes) and piers
Curb & Gutter
Concrete volume for curbs, gutters, and drainage channels
Why trust our calculators
Open-source formulas
Every calculation shows its formula, a worked example, and common mistakes. You can verify the math yourself before ordering materials.
Imperial & metric support
Switch between imperial (feet, inches, cubic yards) and metric (meters, centimeters, cubic meters) on any calculator. Results update instantly.