Calcifit
Concrete calculators for real-world projects
Calculations that fit your project.
Free, instant project calculators with live diagrams that respond to your measurements.
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Concrete calculators
Choose the project shape or purchasing workflow that matches what you need to estimate.
Concrete Slab Calculator
Calculate concrete volume for a rectangular slab.
Open calculatorConcrete Bag Calculator
Estimate how many concrete bags are needed from a required volume and bag yield.
Open calculatorConcrete Post Hole Calculator
Calculate concrete for one or more cylindrical post holes.
Open calculatorConcrete Footing Calculator
Estimate concrete volume for rectangular footings.
Open calculatorConcrete Column Calculator
Calculate concrete for rectangular or circular columns.
Open calculatorConcrete Wall Calculator
Estimate concrete volume for solid rectangular walls.
Open calculatorConcrete Stairs Calculator
Calculate concrete for a solid straight staircase.
Open calculatorConcrete Driveway Calculator
Estimate concrete volume for a rectangular driveway slab.
Open calculatorConcrete Curb Calculator
Calculate concrete for a straight rectangular curb.
Open calculatorConcrete Circular Slab Calculator
Estimate concrete volume for a circular slab.
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Practical by design
Plan without an account
- Calculations update directly in each calculator.
- US Customary and Metric measurement systems are supported.
- Results are planning estimates, not engineering or code approval.