Calculate exactly how much
concrete your project needs
15 free calculators for slabs, driveways, patios, foundations, and more — built on ACI-standard formulas and trusted by contractors, engineers, and serious DIYers.
Volume & Project Calculators
Every calculator in this category — click any card to open the tool.
Volume, bags, and material quantities for any rectangular slab.
Use CalculatorFull cost estimate including materials, labor, and waste.
Use CalculatorConvert any dimensions to cubic yards instantly.
Use CalculatorGeneral-purpose volume tool for any concrete shape or pour.
Use CalculatorCalculate total cubic yards needed before placing a ready-mix order.
Use CalculatorQuick yards estimate with bag count breakdown for any slab or pour.
Use CalculatorFull driveway cost estimate: material, labor, and finishing.
Use CalculatorEstimate patio concrete cost with optional stamped finish pricing.
Use CalculatorVolume and bag counts for pads, shed bases, and equipment footings.
Use CalculatorSidewalk volume and material quantities by length, width, and depth.
Use CalculatorConcrete volume for slab-on-grade, T-shaped, and perimeter foundations.
Use CalculatorCost estimate for stamped finishes by pattern type and square footage.
Use CalculatorVolume and mix quantities for custom countertop slabs and islands.
Use CalculatorVolume and cost for garage floor slabs including expansion joints.
Material estimate for curved or straight walkways of any length.
Pick the right calculator for your project
Match your project type to the best tool in this category.
| What are you building? | Best tool to use | Open tool |
|---|---|---|
| Poured concrete slab (garage, patio, shed base) | Handles rectangular pours — outputs cu yd, bags, and waste | Open |
| Concrete driveway (cost estimate) | Full cost breakdown including labor and finishing rates | Open |
| Patio or outdoor entertaining space | Patio cost calculator with optional stamped concrete pricing | Open |
| Sidewalk or walkway (linear pour) | Sidewalk calculator — enter length, width, and thickness | Open |
| House or building foundation slab | Foundation calculator with slab, T-shape, and perimeter types | Open |
| Stamped or decorative concrete surface | Stamped concrete cost calculator by pattern and square footage | Open |
Related calculator categories
Working on a full concrete project? These categories cover the rest.
Built for the job site, not the classroom
Every tool is free, no signup required, and built on ACI and ASTM standard formulas.
ACI-based formulas
Every calculation follows American Concrete Institute standards — the same specs engineers and inspectors use on real projects.
Instant results, no login
Type your dimensions and get your answer. No account, no email, no ads. Results update live as you type.
Mobile-ready on the job site
All calculators work on any device — phone, tablet, or desktop — with touch-optimized inputs sized for work gloves.
Planning a full concrete project? Start with the concrete slab calculator to get your volume, then confirm mix ratios in the concrete mix calculator, and finish with the curing time calculator to schedule your pour around weather conditions.
Common questions about concrete volume
Quick answers for the most-asked questions on this topic.