Planning a concrete project? Whether you're pouring a driveway, slab, patio, or footing, knowing how much concrete you need — and how much it will cost — is essential.
Our Concrete Cost Calculator helps you estimate the concrete volume in cubic yards and the total cost quickly and accurately.
How to Calculate Concrete Volume
To estimate the volume of concrete required, use the Length, Width, and Depth/Thickness of the area.
Formula
Concrete Volume (cubic yards)=27×12Length (ft)×Width (ft)×Depth (in)
Note:
- 27 cubic feet = 1 cubic yard
- Depth is converted from inches to feet (12 inches = 1 foot)
How to Calculate Total Concrete Cost
Once you know the concrete volume, simply multiply it by the cost per cubic yard.
Formula
Total Concrete Cost=Concrete Volume (cubic yards)×Cost per Cubic Yard
Example Calculation
Let’s say you're pouring a slab that is:
- Length = 20 feet
- Width = 10 feet
- Depth/Thickness = 6 inches
- Cost of Concrete per Cubic Yard = $135
Step 1: Calculate Concrete Volume
Concrete Volume=27×1220×10×6
Concrete Volume=3241200≈3.70cubic yards
Step 2: Calculate Total Concrete Cost
Total Cost=3.70×135=$499.50
Conclusion
Using the Concrete Cost Calculator, you can quickly estimate both the amount of concrete needed and the total cost of your project.
Always consider ordering slightly more concrete (about 5% extra) to account for spillage, over-excavation, or changes in project dimensions.
Frequently Asked Questions (FAQs) about Concrete Cost
1. How much does concrete cost per cubic yard?
Concrete prices typically range from $125 to $150 per cubic yard, depending on your location, type of concrete, and supplier. Always check with local suppliers for the most accurate pricing.
2. What factors affect the cost of concrete?
Several factors can influence concrete cost, including:
- The grade and strength of concrete
- Delivery distance and fuel costs
- Amount of concrete ordered (small loads may have higher fees)
- Labor and finishing costs (if applicable)
- Additional materials like fibers, color additives, or accelerators
3. How do I calculate how much concrete I need?
Measure your project’s length, width, and depth, then use the formula:
Concrete Volume (cubic yards)=27×12Length (ft)×Width (ft)×Depth (in)
Our Concrete Cost Calculator can do this instantly for you.
4. Should I order extra concrete?
Yes, it’s recommended to order 5% to 10% extra concrete to cover spillage, over-excavation, and minor miscalculations. It’s always better to have a little extra than to run short.
5. Is it cheaper to mix my own concrete or buy ready-mix?
For small projects, mixing your own concrete may be cheaper.
For larger projects (over 1-2 cubic yards), ordering ready-mix concrete is often more cost-effective, saves time, and ensures better consistency.
6. Are there extra fees when ordering concrete?
Yes, some suppliers may charge:
- Short load fees (for small orders under a full truck)
- Waiting time fees (if unloading takes too long)
- Saturday delivery charges
- Additional distance fees (if delivery is far from the plant)
7. Can I calculate concrete cost for irregular shapes?
Yes, but you’ll need to break the area into smaller regular shapes (rectangles, circles, etc.), calculate each volume, and add them together. Our calculator works best for rectangular or square slabs.
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