To estimate a concrete slab or driveway cost, multiply the area (length × width) by your combined price per square foot for concrete, labour, reinforcement and any base prep, then add fixed extras such as permits or forms. For a poured concrete wall, multiply the wall’s face area (length × height) by the combined material-and-labour rate.
Concrete Cost Calculator
Installed cost of a poured concrete slab, driveway or wall — material, labour, reinforcement and finishing, from your own square-foot price.
Estimating the Cost of a Concrete Slab, Driveway or Wall
This concrete cost calculator covers the three jobs homeowners price most often: a poured concrete slab (patio, shed pad, garage floor), a concrete driveway, and a poured concrete wall. Each mode uses the dimensions of the job plus your own local price-per-square-foot inputs for concrete, labour, reinforcement, base preparation, and old-material removal, so the total reflects real quotes rather than a generic national average.
Concrete pricing varies enormously by region, mix strength, delivery distance, and contractor demand, which is why this tool asks for your own per-square-foot rates instead of assuming a fixed number. If you’re still gathering quotes, ready-mix suppliers and local contractors are the most reliable source for current concrete cost per square foot and cost per yard in your area.
Related searches this calculator answers include concrete slab cost calculator, concrete driveway cost per square foot, poured concrete wall cost, and concrete cost estimator for garage floors and patios.
Depending on what you are measuring, one of these may suit the job better: Driveway Square Footage Calculator and Concrete Wall Calculator.
How the Concrete Cost Calculator Works
Slab Mode
Total = Area × (Concrete price + Labour price + Rebar/mesh price) + Extras
Where:
- Area = Length × Width
- Concrete price = your quoted material cost per square foot
- Labour price = placing and finishing cost per square foot
- Rebar/mesh price = reinforcement cost per square foot (enter 0 if none)
- Extras = one-time costs like forms, sealer or permits
Example: a 20 ft × 20 ft slab (400 ft²) at $6/ft² concrete, $2.50/ft² labour, no rebar, plus $150 in extras costs 400 × (6 + 2.5) + 150 = $3,550.
Driveway Mode
Total = Area × (Concrete price + Labour price + Base prep price + Removal price)
The driveway mode adds a gravel base-prep rate and an optional old-driveway removal rate, since both are common driveway-specific costs that a basic slab quote doesn’t include.
Poured Wall Mode
Total = Face area × (Concrete price + Labour price), where face area = Wall length × Wall height
Formwork and finishing typically make poured-wall labour rates higher per square foot than a flat slab, which is reflected by entering your own wall-specific labour quote.
Related: Concrete Floor Calculator.
Frequently Asked Questions
How much does a concrete slab cost per square foot?
It depends on your local ready-mix price, slab thickness, labour rates and whether reinforcement is included, so there’s no single accurate number nationwide. Enter your own quoted rates above to get a total specific to your project.
Does this calculator include rebar or wire mesh?
Yes — the slab mode has an optional reinforcement price per square foot. Leave it at 0 if your project doesn’t need rebar or mesh.
What’s included in the driveway base prep cost?
Base prep typically covers excavation and compacted gravel beneath the slab. Enter your contractor’s quoted rate for this step separately from the concrete and labour rates.
Why isn’t there a default price per square foot?
Concrete prices shift with mix strength, delivery distance and regional ready-mix rates, so a fixed default would be inaccurate for most users. Using your own quote keeps the estimate reliable.
Can I use this for a concrete patio instead of a driveway?
Yes — use the slab mode for a patio, shed pad, or any flat poured area, and switch to the driveway mode only when you need the base-prep or old-driveway-removal inputs.
