Calculator
Choose a pour shape, enter its dimensions, and adjust the local material price. Results update instantly.
Plan slabs, rectangular footers, and cylindrical footers. Enter project dimensions and your local bag price for a practical material estimate.
Choose a pour shape, enter its dimensions, and adjust the local material price. Results update instantly.
Estimate patios, pads, walkways, and floors from length, width, and thickness.
Calculate continuous or cube-shaped footings from length, width, and depth.
Estimate round deck and fence-post footings from diameter and depth.
Multiply length by width by thickness or depth. Convert slab thickness from inches to feet, then divide cubic feet by 27.
Use the circular area from the diameter, multiply it by the depth, then divide cubic feet by 27.
Most DIY pours use 5% to 10% waste. Uneven forms, slopes, and spillage may require more.
No. Enter your local cost per bag for a closer estimate. Bulk and delivery prices vary by supplier and region.
Thickness, base preparation, waste, and volume planning.
Plan continuous and round footings while respecting local code.
Compare 60-lb and 80-lb bags and practical mixing limits.
Compare labor, delivery, minimums, and project scale.
Privacy: anonymous usage totals stay on this device. They record only pour shape, dimension units, and mix selection. Analytics never records project dimensions, prices, names, notes, or other personal data, and no third-party tracker is used.