HomeCostGuideConcrete Calculator
Figure concrete volume and cost for slabs and footings.
Updated August 2026
Your project
Estimate
$321–$543
- Volume
- 66.7 cu ft
- Ready-mix needed
- 2.47 cu yd
Small pours below a truck's minimum load often carry a short-load fee not reflected here.
Methodology
Volume is length × width × thickness, converted to cubic yards, then priced using a per-cubic-yard range that includes typical ready-mix delivery and finishing labor.
How this calculator works
The calculator multiplies slab length, width, and thickness (converted from inches to feet) to get cubic feet of concrete, then converts to cubic yards — the unit ready-mix concrete is ordered and priced in. That volume is priced using a per-cubic-yard range that reflects typical ready-mix delivery plus placement and finishing labor for a standard slab or footing.
Inputs explained
- Slab length & width
- The poured area's dimensions in feet.
- Thickness
- Slab depth in inches. 4 inches is standard for patios, walkways, and sheds; driveways and structural slabs are typically thicker (5–6+ inches).
Example calculation
A 20×10 slab at 4 inches thick works out to about 66.7 cubic feet — roughly 2.5 cubic yards of ready-mix concrete — costing about $321–$543 including standard delivery and finishing.
What affects your total cost
Small pours below a ready-mix truck's minimum load (typically around 1 cubic yard) often carry a short-load surcharge not reflected in this baseline estimate. Reinforcement (rebar or wire mesh), decorative finishes (stamped or colored concrete), and site prep like excavation or forming for irregular shapes add cost beyond a basic flat pour.
Regional cost differences
Ready-mix pricing and finishing labor both vary regionally — delivery distance from the nearest batch plant can also affect cost in rural areas. Check your state's page under Locations for a regional labor cost comparison.
Frequently asked questions
Does this include rebar or wire mesh reinforcement?+
No — this estimates the concrete pour itself. Reinforcement is typically priced separately and is recommended for driveways, structural slabs, and anywhere the slab will bear significant load.
What thickness should I use for a driveway vs. a patio?+
Patios, walkways, and sheds typically use 4 inches. Driveways that need to support vehicle weight are usually poured at 5–6 inches, and areas with heavier vehicles (RVs, trucks) may need more — check local code requirements.
Why is there a minimum-load fee mentioned but not calculated?+
Short-load fees vary by ready-mix supplier and region rather than following a consistent formula, so we flag it as a consideration rather than building in a specific surcharge that might not match your local supplier's pricing.
These estimates follow our published cost estimation methodology. They’re a planning starting point, not a contractor quote — actual costs vary by location, material choice, and project complexity.