Concrete Calculator
What are you pouring?
Slab, patio, driveway or shed pad
Footing, curb or trench (long and narrow)
Round column, pier or post hole
Length
feet
inches
meters
cm
Width
feet
inches
meters
cm
Thickness / depth
inches
cm
mm
Patios and shed pads are typically 4 in; driveways carrying vehicles 5–6 in.
Diameter
inches
cm
mm
Height / depth
feet
inches
meters
cm
How many identical pours?
Waste allowance (%)
Covers spillage and uneven subgrade.
Bag size to price
80 lb — 0.60 cu ft
60 lb — 0.45 cu ft
50 lb — 0.375 cu ft
40 lb — 0.30 cu ft
Calculate
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