Embed a concrete volume calculator on your website. Ideal for construction, contracting, or home improvement sites to help visitors estimate concrete needs.
Copy the code below and paste it into your website's HTML. The calculator will appear exactly as shown below.
<iframe src="http://localhost:45678/concrete-calculator" width="640" height="520" frameborder="0" scrolling="auto" title="Concrete Calculator for Your Site" ></iframe>
This is exactly what your visitors will see when the calculator is embedded.
Estimate concrete volume and pre-mixed bag counts for slabs, columns, circular slabs, curb & gutter barriers, and stairs. Based on 133 lb/ft³ (2,130 kg/m³) density. All dimensions accept feet, inches, yards, meters, or centimeters.
Rectangular prism. Formula: V = Length × Width × Thickness × Quantity
Cylinder. Formula: V = π × (Diameter / 2)² × Depth × Quantity
Cylindrical ring. Formula: V = π × ((d1/2)² − (d2/2)²) × Height × Quantity. Inner diameter must be smaller than outer diameter.
L-shaped cross-section extruded along a length. Formula: V = (Curb Depth × Curb Height + Gutter Width × Flag Thickness) × Length × Qty
Stair wedge + platform. Formula: V = Width × Rise × Steps × (0.5 × Run × Steps + Platform Depth)
Calculate exactly how much concrete you need for your project with our free concrete calculator, supporting slabs, footings, and columns.
Concrete Volume = Length × Width × Depth (or Height for columns), converted to cubic yards or cubic meters depending on your preferred units. For circular columns, volume uses π × radius² × height.
Yes, ordering 5-10% extra is common practice to account for spillage, uneven ground, and formwork inconsistencies.
Concrete is commonly sold by the cubic yard (US) or cubic meter, ready-mix trucks typically have minimum order quantities, check with local suppliers.
No, this calculates gross concrete volume; reinforcement (rebar) typically doesn't significantly reduce the concrete volume needed and is usually not subtracted.
Both use the same volume formula, but footings are typically calculated for individual sections (like a strip footing), while slabs cover a broader flat area.