Free calculator widgets

Add a Concrete Calculator to Your Website

Give your visitors instant yardage, bag counts, and cost estimates — free, no signup, no ads, mobile-friendly. Paste one snippet.

Every PourMath calculator below can be embedded on any website — contractor sites, ready-mix suppliers, DIY blogs. The widget runs entirely in the visitor's browser, matches any layout up to 520px wide, and never shows ads. We ask that you keep the small attribution link under the widget. Questions or a custom request: contact us.

Concrete Slab Calculator

Square or rectangular slabs — patios, sheds, garage floors. Try it →

<iframe src="https://pourmath.com/embed/slab/" width="100%" height="930"
        style="border:0;max-width:520px" loading="lazy"
        title="Concrete Slab Calculator"></iframe>
<p style="font-size:14px">Calculator by <a href="https://pourmath.com/slab/">PourMath</a></p>

Concrete Driveway Calculator

Estimate concrete and cost for a residential driveway pour. Try it →

<iframe src="https://pourmath.com/embed/driveway/" width="100%" height="930"
        style="border:0;max-width:520px" loading="lazy"
        title="Concrete Driveway Calculator"></iframe>
<p style="font-size:14px">Calculator by <a href="https://pourmath.com/driveway/">PourMath</a></p>

Concrete Patio Calculator

Backyard patios, seating areas, and outdoor pads. Try it →

<iframe src="https://pourmath.com/embed/patio/" width="100%" height="930"
        style="border:0;max-width:520px" loading="lazy"
        title="Concrete Patio Calculator"></iframe>
<p style="font-size:14px">Calculator by <a href="https://pourmath.com/patio/">PourMath</a></p>

Concrete Footing Calculator

Continuous footings, grade beams, and strip foundations. Try it →

<iframe src="https://pourmath.com/embed/footing/" width="100%" height="930"
        style="border:0;max-width:520px" loading="lazy"
        title="Concrete Footing Calculator"></iframe>
<p style="font-size:14px">Calculator by <a href="https://pourmath.com/footing/">PourMath</a></p>

Concrete Sidewalk Calculator

Walkways, garden paths, and front-entry sidewalks. Try it →

<iframe src="https://pourmath.com/embed/sidewalk/" width="100%" height="930"
        style="border:0;max-width:520px" loading="lazy"
        title="Concrete Sidewalk Calculator"></iframe>
<p style="font-size:14px">Calculator by <a href="https://pourmath.com/sidewalk/">PourMath</a></p>

Concrete Steps Calculator

Porch steps and stoops — solid-poured stairs. Try it →

<iframe src="https://pourmath.com/embed/steps/" width="100%" height="1015"
        style="border:0;max-width:520px" loading="lazy"
        title="Concrete Steps Calculator"></iframe>
<p style="font-size:14px">Calculator by <a href="https://pourmath.com/steps/">PourMath</a></p>

Concrete Wall Calculator

Foundation, stem, and retaining walls — formed and poured. Try it →

<iframe src="https://pourmath.com/embed/wall/" width="100%" height="930"
        style="border:0;max-width:520px" loading="lazy"
        title="Concrete Wall Calculator"></iframe>
<p style="font-size:14px">Calculator by <a href="https://pourmath.com/wall/">PourMath</a></p>

Sonotube & Column Calculator

Round forms: sonotubes, deck piers, and post footings. Try it →

<iframe src="https://pourmath.com/embed/column/" width="100%" height="930"
        style="border:0;max-width:520px" loading="lazy"
        title="Sonotube &amp; Column Calculator"></iframe>
<p style="font-size:14px">Calculator by <a href="https://pourmath.com/column/">PourMath</a></p>

Concrete Bag Calculator

How many 40, 60, or 80 lb bags your pour really needs. Try it →

<iframe src="https://pourmath.com/embed/bags/" width="100%" height="1130"
        style="border:0;max-width:520px" loading="lazy"
        title="Concrete Bag Calculator"></iframe>
<p style="font-size:14px">Calculator by <a href="https://pourmath.com/bags/">PourMath</a></p>

Triangle Concrete Slab Calculator

Triangular pads, corner slabs, and angled pours. Try it →

<iframe src="https://pourmath.com/embed/triangle/" width="100%" height="930"
        style="border:0;max-width:520px" loading="lazy"
        title="Triangle Concrete Slab Calculator"></iframe>
<p style="font-size:14px">Calculator by <a href="https://pourmath.com/triangle/">PourMath</a></p>

Post Hole Concrete Calculator

Fence posts, deck posts, and mailboxes — bags per hole. Try it →

<iframe src="https://pourmath.com/embed/posthole/" width="100%" height="1015"
        style="border:0;max-width:520px" loading="lazy"
        title="Post Hole Concrete Calculator"></iframe>
<p style="font-size:14px">Calculator by <a href="https://pourmath.com/posthole/">PourMath</a></p>

Rebar Calculator

Two-way grid for a slab: pieces, linear feet, and weight. Try it →

<iframe src="https://pourmath.com/embed/rebar/" width="100%" height="1200"
        style="border:0;max-width:520px" loading="lazy"
        title="Rebar Calculator"></iframe>
<p style="font-size:14px">Calculator by <a href="https://pourmath.com/rebar/">PourMath</a></p>