Concrete Cost Calculator with 2026 State Pricing

How to Estimate Concrete Costs

Estimating concrete costs accurately requires more than multiplying square footage by a price-per-yard figure. The first thing seasoned estimators tell juniors is to think in cubic yards, not square feet. A 4-inch slab uses roughly 1.23 cubic yards per 100 square feet, but bump that to 6 inches for a garage floor and you are at 1.85 cubic yards per 100 square feet — 50% more concrete, and 50% more of the material cost that tracks it. Read that as a statement about volume and materials, not about the free estimate's installed range: Quick prices flatwork all-in per square foot by project type and carries no thickness term, so its range does not move when you change the thickness. Use Professional mode for a thickness-sensitive installed estimate — it bills the ready-mix by the cubic yard.

This calculator prices ready-mix delivered at $160 per cubic yard for standard 3,000 PSI mix, which is the baseline every other mix is priced against. Stepping up to 5,000 PSI multiplies that by 1.35× ($216 per yard), and fiber-reinforced mix by 1.25× ($200 per yard). Short-load charges apply on top when you order less than a full truck (typically 8-10 yards); those surcharges vary by supplier and are not modeled here, so on a 3-yard pour expect your real per-yard cost to land meaningfully above the figure above.

Labor is the biggest variable in concrete work. This calculator bills flatwork placement and finishing (patios, driveways, sidewalks) at $5.00 per square foot for a standard broom finish. Stamped concrete multiplies that by 2× — $10.00 per square foot — because of the additional finishing time and specialized tools. Foundation walls and footings carry higher labor costs than flatwork because of formwork complexity; this calculator estimates flatwork, so it does not price wall contact area.

The most common estimating mistake is underordering concrete. Unlike lumber, you cannot return unused concrete, but you absolutely cannot come up short mid-pour. Always order 10% more than your calculated volume. Subgrade conditions matter too: if your base is not properly compacted and graded, you will end up with uneven thickness and potentially more concrete than planned. A good rule of thumb is that every 1/2 inch of subgrade irregularity across a 1,000 square foot slab adds roughly 1.5 extra cubic yards.

Pump trucks are mandatory when the mixer cannot back up to the pour location. This calculator bills pumping the way suppliers quote small residential jobs — a minimum charge of $450 per job, or $35 per cubic yard if that comes to more — rather than by the hour, so a typical driveway pour lands at the minimum. Line pumps handle most residential work; boom pumps for second-story or long-reach pours cost more than this baseline and are quoted job by job.

Concrete Cost Per Square Foot by Project Type

A patio and a commercial pad take the same truck of 3,000 PSI mix. What moves the price is what the slab has to survive: how much base prep goes under it, how flat the finish has to be, and how much of the crew's day it eats. These are the three figures this calculator returns for each project type at national baseline pricing, divided by the 400 square feet of the 20 x 20 ft reference slab.

Commercial and industrial slabs carry the highest rate because they are specified for forklift and truck loading, which means a thicker section, a heavier reinforcement schedule and a power-troweled finish. Basement floors price above driveways for a less obvious reason: everything gets carried or pumped down a stair, and a slab poured inside a foundation cannot be screeded off the truck.

Typical Concrete Cost Breakdown

Understanding where your money goes helps you identify areas where you can save or where cutting corners will cost more long-term.

General industry guidance, not your estimate. The percentages below are typical shares of a finished concrete job across the market. They are not derived from the calculator above and will not reconcile to it — your estimate prices the scope you selected, and some items listed here (vapor barrier, saw-cut control joints, curing upgrades) are not priced in it at all.

What the Materials Cost: 20 x 20 ft Garage Slab, Line by Line

This is the same 20 x 20 ft slab worked at the top of the page, broken out the way you would actually buy it. Quantities come from the takeoff — 5.4 cubic yards of ready-mix once the standard waste factor is added, which the list rounds up to the 5.5 yards a supplier actually bills; forms sized off the perimeter; mesh by roll coverage — and the prices are the national retail figures this calculator bills.

Hiring the slab out costs $3,200 at national baseline pricing — $2,560 to $4,480 across the band. Against $1,231.25 of material, the $1,969 difference is the crew, the mixer truck, the pump if the site needs one, liability insurance and the contractor's margin. This calculator budgets 4 hours of professional crew time for a slab this size, and the pour itself is the short part — forming and grading is the day before, and finishing runs until the concrete tells you it is ready.

Two lines on that list are worth arguing with. The bull float and the wheelbarrow price at zero because they are rentals, not purchases — budget a day rate for both. And the sealer is the only item you can defer: it goes on after the slab has cured, so it does not have to be in the truck on pour day.

Regional Pricing Factors for Concrete

Concrete prices vary significantly across the United States, driven primarily by proximity to cement plants and aggregate quarries. The $160 per cubic yard above is a national baseline, not a floor or a ceiling. In the Midwest and Southeast, where raw materials are abundant, ready-mix lands below it; coastal metros like San Francisco, New York, and Seattle sit above it because of higher transportation costs, stricter environmental regulations, and elevated labor rates. Enter your ZIP code in the calculator to apply the regional factor for your area rather than the national figure.

Climate affects costs beyond just the concrete itself. In northern states, frost protection requirements mean deeper footings (typically 42-48 inches below grade versus 12-18 inches in southern states), which doubles or triples your foundation concrete volume. Cold-weather pours require heated enclosures and accelerators, which this calculator does not price — budget for them separately. Hot-weather pours in Arizona or Texas need retarders and extra finishing labor due to rapid set times.

Concrete slab cost by metro area

These are the complete regional factors this calculator applies — not a selection. Type the ZIP in the second column into the ZIP field above and the calculator will price your own slab at that factor. The cost column is the same 20 x 20 ft garage floor used throughout this page, so the rows are comparable to each other and to the national $3,200 above.

The factor is applied to the whole estimate, not just to the concrete, which is the right behaviour: labor is what actually varies between these markets. Ready-mix itself moves less than the table implies, because a cubic yard is mostly aggregate and cement batched at a plant close enough to discharge the load before it sets. If your ZIP is not in the list, the calculator prices at the national baseline rather than guessing.

Use our calculator with your ZIP code to get region-adjusted pricing, or browse concrete costs in your state:

Cost to Remove and Replace an Existing Slab

Most concrete work is replacement, not new construction, and demolition is the line homeowners leave out of their budget. Tick Remove Existing Concrete in the calculator and it adds breakout, load-out and disposal on top of the pour, priced off the slab thickness you enter — a like-for-like tear-out and repour.

Demolition scales with thickness because that is what determines whether the slab comes up with a jackhammer and a skid steer or needs a breaker attachment and more trips to the transfer station. A 4-inch unreinforced patio comes up in an afternoon; an 8-inch reinforced pad with wire mesh through it is a different job, because the mesh has to be cut out of every piece before it can be loaded.

One caveat on reading this table: the fresh-pour column is $3,200 at every thickness because the free estimate prices flatwork all-in per square foot by project type and carries no thickness term. The extra concrete a thicker slab orders is priced in Professional mode, which bills the ready-mix by the cubic yard. Use this table for the demolition side of the decision and Professional mode for the pour.

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