How to use it
- Enter length, width, and thickness in feet and inches.
- Enter the price per cubic yard.
- Click the Calculate button.
- Read the cubic yards, estimated cost, bag count, and cubic feet results.
This free calculator tells you exactly how much concrete a driveway will consume, the total price, and how many 80‑lb bags you must order. Knowing the cubic yards helps you compare contractor quotes, while the bag count prevents under‑ordering that can delay a project. The result also shows cubic feet, a useful reference when buying sand or gravel for a base. Simply input the dimensions and your local material price, then click Calculate. The output breaks down the volume in cubic yards, the estimated cost based on your price, the number of bags (each 0.6 ft³), and the raw cubic‑feet figure so you can verify the math yourself.
Pro tips
- Add 5‑10% extra volume for waste and spillage.
- Round bag count up to the nearest whole bag to avoid shortages.
- Order concrete a day early to ensure delivery on schedule.
- Double‑check thickness units; 4 in is typical for residential driveways.
Real-life examples
- A homeowner budgeting for a new 12 × 20 ft driveway.
- A contractor preparing a bid for a commercial parking strip.
- A DIY enthusiast buying bags for a small patio extension.
Case study
John entered his 10 × 12 ft driveway with a 4‑in thickness and saw 1.48 yd³, $178 cost, and 67 bags. He ordered 70 bags, avoided a mid‑project shortage, and completed the pour on time.