This calculator helps you estimate the amount of concrete needed for slabs, footings, columns, and custom projects. 計算結果 include total volume, cubic yards/meters, and bag estimates for common bag sizes.

• 1 cubic yard = 27 cubic feet
• 1 cubic meter = 35.3147 cubic feet
• 40 lb bag ≈ 0.30 cu ft, 60 lb bag ≈ 0.45 cu ft, 80 lb bag ≈ 0.60 cu ft
• Always order a little extra to account for spillage and over-excavation