Concrete Calculators
Updated Formulas shown
Slabs, footings, columns, steps, post holes and bags. Every calculator shows its formula and works on your phone at the job site.
Related calculators
- Concrete CalculatorFree concrete calculator: enter length, width and thickness to get cubic yards, 40/60/80 lb bag counts and ready-mix cost.
- Concrete Bag CalculatorHow many bags of concrete do you need? Enter the size of your slab or pad to get the exact number of 40, 60 and 80 lb bags of Quikrete or Sakrete.
- Concrete Slab Cost CalculatorEstimate the cost of a concrete slab, patio or driveway: material per cubic yard plus labor per square foot, with 2026 US price ranges.
- Concrete Footing CalculatorCalculate concrete for continuous wall footings: enter total length, width and depth to get cubic yards and bags.
- Concrete Column & Sonotube CalculatorConcrete for round columns, piers and Sonotube forms: enter diameter, height and quantity for cubic yards and bag counts.
- Concrete Steps CalculatorHow much concrete do concrete steps need? Enter number of steps, rise, run, width and landing for an exact volume.