Concrete for This Slab

Enter slab length and width in feet, thickness in inches, the volume yielded by one bag in cubic feet, an extra allowance and price per bag in USD. See cubic feet, cubic yards, whole bags rounded up and the estimated material cost. Edit exact measurements or adjust them in small steps. Patio, walkway and shed-pad examples are clearly labeled. Invalid entries remain visible so you can correct them. Save one estimate with its inputs and date, restore it later and share a text summary. Replacing or deleting the saved estimate asks for confirmation. Earlier saved text remains available separately. Works locally on iPhone and iPad, without an account, tracking, advertising or cloud sync. English, Korean, Japanese, Simplified and Traditional Chinese, Spanish, French, German and Brazilian Portuguese are available in Settings. Uses feet, inches, cubic feet, cubic yards and USD; metric measurements and currency conversion are not provided. This is a material estimate, not a structural design or ordering guarantee. Check dimensions and the manufacturer’s stated bag yield before buying.