Concrete Calculator – Easily Estimate Your Concrete Needs

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Calculate Concrete Volume Instantly with Our Concrete Calculator

Planning a concrete project? Use our concrete calculator to determine how much concrete you need for slabs, footings, columns, wall curb & gutter, and steps or stairs. Avoid waste and ensure accurate measurements with our simple tool.

How to Use the Concrete Calculator

Follow these easy steps to estimate your concrete needs:

Select the Type of Project – Choose from slabs, footings, columns, or cylinders.
Enter Dimensions – Provide the length, width, and thickness (for slabs) or height and diameter (for columns).
Get Instant Results – The calculator gives you the total concrete volume in cubic yards, cubic feet, and cubic meters.

Concrete Calculation Formula

Our concrete calculator follows these formulas to estimate the required concrete volume for different structures:

For Slabs & Footings
Volume= Length × Width × Thickness

For Columns & Cylinders
Volume= π × (Radius2) × Height
For Walls
Volume= Length × Height × Thickness
For Curbs & Gutters
Volume= (Curb Height × Curb Width + Gutter Width × Gutter Thickness) × Length

For Steps
Volume=Number of Steps × Step Width × Step Height × Step Depth

These formulas ensure you get an accurate estimate of the concrete required for your project. Use our concrete calculator now to simplify your calculations!

Concrete Calculator

Example Calculation

For a 12 ft × 12 ft slab with a 6-inch thickness:

Convert thickness to feet: 6 inches = 0.5 ft
Volume = 12 × 12 × 0.5 = 72 cubic feet
Convert to cubic yards: 72 ÷ 27 = 2.67 cubic yards

How Much is a Yard of Concrete?

1 Cubic Yard (yd³) =

27 cubic feet (ft³) (since 1 yd = 3 ft → 3 × 3 × 3 = 27 ft³)
46,656 cubic inches (in³) (since 1 ft³ = 1,728 in³ → 27 × 1,728 = 46,656 in³)
764,554.86 cubic centimeters (cm³)
0.7646 cubic meters (m³)

Pro Tips for Ordering Concrete

Order Extra – It’s best to add 10% more to account for spillage and waste.
Choose the Right Mix – Different projects require different concrete strengths. Check with your supplier.
Measure Accurately – Ensure correct dimensions to get the most precise estimate.