How to use the concrete cost calculator
- Enter slab dimensions and thickness.
- Enter your supplier's price per yard.
- Adjust the labor range to quotes from local finishers.
- Add extras such as removal of an old slab, forms or reinforcement.
Formula
Total = (cubic yards × price per yard) + (area × labor per sq ft) + extras. Shown as a low–high range.
Worked example
A 20 × 20 ft patio at 4 in: 5.19 yd³ × $137 = $711 material; labor 400 × $2–$5 = $800–$2,000; total about $1,510–$2,710 before extras.
Tips for using the concrete cost calculator
- Get your local ready-mix price per yard; it varies widely by region and season.
- Add removal of old concrete, base gravel and rebar if your project needs them.
- Decorative finishes such as stamping or staining can double the per-square-foot labor.

Concrete Cost Calculator FAQs
How much does a concrete slab cost per square foot?
National pricing puts materials around $2–$5 and labor around $2–$5 per sq ft; its 30 × 30 ft example totals $3,600–$7,200. Decorative finishes cost more.
What raises concrete costs?
Removing old concrete, poor access for the truck, excavation, thicker slabs, reinforcement, stamped or colored finishes, and small orders with short-load fees.
Is this a quote?
No. It is a planning range. Get written quotes from licensed local contractors.
