CONCRETE ESTIMATOR
Concrete Patio Calculator
Calculate concrete for a patio by entering its length, width and planned thickness.
Use the calculator →Quick answer
A 12 × 16 ft patio at 4 inches thick is about 2.37 cubic yards before extra material.
Your final order should reflect the actual dimensions, conditions, product yield and any buffer you choose.
How the calculation works
For irregular patios, break the layout into simple rectangular sections, calculate each section, and add the totals.
Calculate your actual project
Enter your measurements and see yards plus five bag sizes.
Before you buy
- Measure the actual area and depth.
- Confirm the yield printed on the bag or supplier specification.
- Plan for site variation and spillage.
- For larger pours, compare ready-mix delivery with bagged material and labor.