Concrete driveway cost calculator

Price a poured concrete driveway from the numbers on your own quote: square footage, the installed price per square foot, and the sub-base, rebar and finish line items — with a contingency buffer on top.

Planning estimate: this is a planning estimate from the numbers you enter — not a bid or a contract. Concrete pricing depends on mix, thickness, site access, sub-base prep, finish and local labor. Get itemized written quotes from licensed, insured concrete contractors before you commit.

Calculator

sq ft
Length × width of the slab (e.g. 40 × 15 = 600).
$/sq ft
From your contractor quote — flatwork only.
$
$
$
Broom, saw-cut joints, thickened edge, apron.
$
(0–1)
Buffer as a decimal — 0.10 = 10%.
Estimated total$6,050.00
Flatwork (600 sq ft × $8.00)$4,800.00
Sub-base + rebar + finishes$700.00
Discount / credit−$0.00
Subtotal$5,500.00
Contingency10% ($550.00)

A 600 sq ft concrete driveway at $8.00/sq ft plus sub-base, rebar and finishes is about $6,050.00 with 10% contingency. Enter the prices from your own quotes.

Formula

The driveway estimate adds the flatwork to the itemized line costs, subtracts any credit, then applies your contingency buffer:

total = (area × $/sq ft + sub-base + rebar + finish add-ons − discount) × (1 + contingency)

Every dollar figure is a value you enter from a real quote or bill — the tool never assumes a price. The contingency covers the small surprises (extra excavation, a stubborn old base, a form change) that turn up on almost every pour.

Worked example

A 600 sq ft driveway (40 × 15) at $8/sq ft with a $400 sub-base and $300 of rebar, no finish add-ons and no discount, at a 10% contingency:

  • Flatwork: 600 × $8 = $4,800
  • Line items: $4,800 + $400 + $300 = $5,500 subtotal
  • Contingency: $5,500 × 1.10 = $6,050

So the planning estimate is about $6,050. Swap in your own price per square foot and line items to match your quote.

What drives a concrete driveway price

Installed concrete driveways commonly land somewhere around $6–$15 per square foot as a labeled planning band — plain broom-finish flatwork at the low end, thicker slabs, decorative finishes, tricky access or heavy rebar at the high end. That band is a sanity check, not a quote: enter the real price your contractor gave you.

What moves the number most: thickness (a 5–6″ slab for heavy vehicles uses far more concrete than a 4″ residential slab), the sub-base (grading and compacted gravel), reinforcement (rebar grid or wire mesh), and finish (broom vs. stamped or exposed aggregate). Removal of an old driveway is a separate line — use the removal & replacement tool for that.

This is a cost-planning estimate, not a bid and not a structural design. A licensed, insured concrete contractor sizes and pours the slab; for load-bearing questions, defer to a licensed engineer and your local code.

Reference table

Labeled planning bands by finish (installed $/sq ft) — a sanity guide only:

FinishTypical installed $/sq ft
Plain broom-finish$6–$11
Reinforced / thicker slab$8–$15
Decorative (stamped / exposed)above the plain band

Confirm every figure against your own written quotes from licensed, insured concrete contractors.

Frequently asked questions

How much does a concrete driveway cost?
It depends on size, thickness, sub-base, reinforcement and finish. As a labeled planning band, installed concrete driveways often run about $6–$15 per square foot. A typical 600 sq ft driveway at $8/sq ft with sub-base and rebar works out to roughly $6,050 with a 10% contingency. Enter your own quote to get a figure for your job.
Is the price per square foot just the concrete?
The installed price per square foot usually bundles the concrete, forming, placing and finishing labor for the flatwork itself. Sub-base grading, gravel, rebar or mesh and special finishes are commonly separate line items — that is why this tool keeps them as their own fields so your estimate matches how the quote is written.
What contingency should I use?
A 10% (0.10) buffer is a common default for a straightforward residential pour. Raise it for old-slab removal, poor drainage, difficult access or a decorative finish where surprises are more likely, and lower it only when the scope is very well defined. It is a planning cushion, not a fee your contractor charges.
Does this include tearing out an old driveway?
No. This estimate is for the new pour. Demolition, breakout and haul-away of an existing driveway are priced separately — use the driveway removal & replacement calculator, which adds the removal cost to a fresh pour.
Is this a structural design?
No. It is a cost-planning estimate from the numbers you enter — not a bid, a contract or an engineering design. Slab thickness and rebar for load-bearing driveways should be confirmed with a licensed engineer and your local building code; a licensed, insured concrete contractor does the pour.

Related calculators

Cement driveway costEstimate cement driveway cost from your own prices — area, $/sq ft, sub-base, rebar, finishes and contingency. Same math as our concrete driveway calculator.Driveway cost per sq ftMultiply driveway area by your installed price per square foot for a quick concrete driveway estimate, with a labeled $6–15/sq ft planning band for reference.Gravel base for drivewayWork out the compacted gravel sub-base under a concrete driveway — cubic yards and tons from area and depth, with a labeled compaction allowance you can adjust.Driveway thickness & rebar referenceTypical concrete driveway thickness and rebar planning values — about 4 in for cars, 5–6 in for heavy vehicles, with #3–#4 rebar at 12–18 in on center.