Concrete Calculator

How Much Concrete
Do You Actually Need?

Enter your dimensions below to get an instant estimate in cubic yards, then let us handle the rest.

feet
feet
inches
Estimated Concrete Needed
0.0yd³

Cubic yards, the unit concrete is ordered in

0 Cubic Feet
0 80lb Bags (DIY)
Enter your dimensions to see which delivery method fits your project.

This is an estimate. Site conditions, waste, and project specifics can affect the final amount; we’ll confirm exact needs during your quote.

How It Works

How to Measure Your Project

1

Measure Length & Width

For rectangular areas like driveways or patios, measure the two longest straight edges in feet.

2

Measure Diameter

For round slabs or footings, measure straight across the widest point, in feet.

3

Confirm Thickness

Most driveways and patios are 4 inches thick; heavier loads may need more. Not sure? We’ll confirm on-site.

Common Questions

Everything You’re Probably Wondering

How accurate is this calculator?

It’s a solid starting estimate based on standard geometry, but real projects have variables like uneven ground, subgrade depth, and site access that can change the final amount. We’ll always confirm exact quantities before your delivery.

Should I order extra concrete?

Most contractors add 5 to 10% over the calculated amount to account for spillage, uneven subgrade, and minor measurement variance, which is why that option is checked by default above.

What thickness should I use?

4 inches is standard for most driveways, patios, and walkways. Areas that will see heavier loads, like a driveway for larger vehicles or commercial equipment, may need 5 to 6 inches or more. We can confirm the right thickness for your specific use.

Will I need a meter truck or a mixer truck?

As a general rule, smaller pours (a few cubic yards or less) are a great fit for a meter truck, while larger pours are better suited to a mixer truck. This calculator gives you a recommendation once you enter your dimensions, or visit our Concrete Delivery page to learn more about both options.

Ready When You Are

Have Your Numbers? Let’s Get You a Quote

Share your estimate with us, and we’ll confirm exact quantities, pricing, and scheduling.

Real Feedback

What Our Customers Are Saying

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Excellent company to work with! Their desire is for the customer to be completely satisfied. This is a quality that is hard to find in today’s world. Our family recommends Penn Starr if you are looking for the best!!
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Parker K
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The guys did a great job pouring and finishing my pole barn floor!
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Louise D
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I am very satisfied with the quality of the work completed on my Penn Star project. The four workers were hardworking and consistently conscientious throughout the process.
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Matthew M
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We've had a great experience working with Penn Star Veneer & Concrete. Their team was easy to work with, communicative throughout the process, and delivered high-quality workmanship. We're very happy with the finished result and appreciate their professionalism and attention to detail. We look forward to working with them again in the future.
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Steve K
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They did an outstanding job install stamped concrete. Great crew very professional.
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Rick B
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Gary and Matt were great and very professional
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Al w
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They were on time and professional. Job looked great.