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Concrete Calculator
US / Imperial
Metric
Shape
⬜
Slab / Floor
🔵
Column / Round
🔲
Footer / Wall
🪜
Stairs / Steps
Length (ft)
Width (ft)
Thickness (in)
Concrete Strength
2500 PSI
3000 PSI
3500 PSI
4000 PSI
Bag Size
60 lb bags
80 lb bags
Waste Factor (%)
Calculate
Concrete volume for slabs, columns, footings, and stairs with bag count and cost estimate.