Driveway Replacement Cost Calculator

Calculate your driveway replacement volume, cost, required bags and cubic feet instantly with this free online calculator.

  • Free
  • No sign-up
  • Instant results

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How to use it

  1. Enter length, width and thickness in feet and inches.
  2. Input the price per cubic yard you were quoted.
  3. Click calculate to see volume, cost, bags and cubic feet.

What it does – You enter length, width, thickness and the price you’ve been quoted per cubic yard. The tool converts those dimensions to volume, shows the result in cubic yards and cubic feet, then multiplies by your price to give an estimated total. It also divides the cubic‑foot volume by 0.6 ft³ per 80‑lb bag to tell you how many bags you’ll need. Why it matters – Knowing the exact volume prevents over‑ordering, saves money, and helps you compare contractor bids. How to read – Cubic yards is the standard unit for concrete orders, Estimated cost is price × cubic yards, Bags tells you the bag count, and Cubic feet lets you verify the conversion. You can adjust any input to see how changes in size or price affect the total, making budgeting quick and transparent.

Pro tips

  • Add 5‑10% extra for waste and spillage
  • Round up bag count to the next whole bag
  • Order a little more than the exact cubic yards to avoid shortfalls
  • Double‑check thickness conversion from inches to feet

Real-life examples

  • A homeowner planning a new concrete driveway wants an accurate budget
  • A contractor needs to quote a client for a driveway replacement quickly
  • A DIY enthusiast wants to know how many bags to buy for a garage driveway

Case study

Homeowner Mike entered his 20 ft × 12 ft driveway at 4 in thick and a price of $120 per cubic yard. The calculator showed 0.35 cubic yards, $42 estimated cost, 7 bags, and 9.5 cubic feet, letting him order exactly what he needed and avoid a $150 over‑order.

Frequently asked questions

How do I convert thickness in inches to feet for the calculator?
Divide the inches by 12; the calculator does the conversion automatically.
Why does the calculator show both cubic yards and cubic feet?
Concrete is sold by the cubic yard, but cubic feet helps verify the volume and bag count.
What if my price per cubic yard changes?
Enter the new price and recalculate to see the updated estimate.
Do I need to round the bag count up?
Yes, you should round up to the next whole bag to ensure you have enough material.
Is this calculator accurate for slopes or multiple sections?
Enter each section’s dimensions separately and add the results for an overall estimate.