Embed Free Calculators on Your Website

Add interactive, free calculators to your site in under 2 minutes — no sign-up, no ads, no code skills needed. Every embed helps your readers and adds value to your content.

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100% Free Forever

No sign-up, no API key, no usage limits. Every calculator is free to embed on any website.

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Fast & Lightweight

Vanilla JavaScript, zero dependencies. Widgets load instantly and won't slow down your page.

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Mobile-Friendly

Every calculator is fully responsive — works perfectly on phones, tablets, and desktops.

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Theme Matching

Match your site's look with light or dark theme, plus auto-resize so the widget always fits.

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Always Updated

We continuously improve the calculators. Your embedded widget gets every update automatically.

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SEO Friendly

Widgets add useful interactive content for your readers, keeping them on your page longer.

How to Embed — 3 Simple Steps

1

Pick a calculator below and click 📋 Copy Code

2

Paste the iframe code into your HTML where you want the widget

3

Done — the calculator appears on your page, ready to use

Customization Options

Every widget supports these optional tweaks — just add them to the iframe URL:

🌙 Dark Theme

Add ?theme=dark to the iframe src to match dark-mode sites:

<iframe src="https://squarefootagecalculator.online/embed-tile?theme=dark" width="100%" height="740"></iframe>

📐 Auto-Resize

Add this one line to your page and every calculator iframe will automatically fit its content — no manual height tweaking:

<script src="https://squarefootagecalculator.online/js/embed-resizer.js" defer></script>

📐 Square Footage Calculator

Calculate area for 8 shapes with multi-room mode and material cost estimation.

<iframe src="https://squarefootagecalculator.online/embed-sqft" width="100%" height="820" frameborder="0" style="border:1px solid #e2e8f0;border-radius:8px;"></iframe>

📦 Volume Calculator

Calculate cubic feet, meters, and yards for 9 shapes — box, circle, trapezoid, border, sphere, cylinder, cone, pyramid, pipe.

<iframe src="https://squarefootagecalculator.online/embed-volume" width="100%" height="820" frameborder="0" style="border:1px solid #e2e8f0;border-radius:8px;"></iframe>

🧱 Tile Calculator

Calculate tiles needed for floors, walls, and backsplashes with 7 tile sizes, grout spacing, and cost.

<iframe src="https://squarefootagecalculator.online/embed-tile" width="100%" height="740" frameborder="0" style="border:1px solid #e2e8f0;border-radius:8px;"></iframe>

🚜 Cubic Yard Calculator

Calculate cubic yards for concrete, soil, mulch, and gravel with material weight estimates.

<iframe src="https://squarefootagecalculator.online/embed-cuyd" width="100%" height="820" frameborder="0" style="border:1px solid #e2e8f0;border-radius:8px;"></iframe>

📐 Cubic Feet Calculator

Calculate cubic feet for boxes, circles, trapezoids, borders, cylinders, pipes, cones, spheres, and pyramids.

<iframe src="https://squarefootagecalculator.online/embed-cuft" width="100%" height="820" frameborder="0" style="border:1px solid #e2e8f0;border-radius:8px;"></iframe>

🧱 Brick Calculator

Calculate bricks needed for any wall with 7 brick sizes, mortar joints, and cost estimation.

<iframe src="https://squarefootagecalculator.online/embed-brick" width="100%" height="820" frameborder="0" style="border:1px solid #e2e8f0;border-radius:8px;"></iframe>

🏛️ Paver Calculator

Calculate pavers needed for patios, driveways, and walkways with 8 sizes and patterns.

<iframe src="https://squarefootagecalculator.online/embed-paver" width="100%" height="820" frameborder="0" style="border:1px solid #e2e8f0;border-radius:8px;"></iframe>

🏗️ Concrete Calculator

Calculate concrete volume, bags, mix ratios, rebar, and cost for slabs, columns, footings, walls, and post holes.

<iframe src="https://squarefootagecalculator.online/embed-concrete" width="100%" height="820" frameborder="0" style="border:1px solid #e2e8f0;border-radius:8px;"></iframe>

🧱 Drywall Calculator

Calculate drywall sheets needed for walls and ceilings with 5 sheet sizes, waste factor, tape, screws, mud, and cost estimates.

<iframe src="https://squarefootagecalculator.online/embed-drywall" width="100%" height="820" frameborder="0" style="border:1px solid #e2e8f0;border-radius:8px;"></iframe>

🏠 Roofing Calculator

Calculate roof area, shingles, bundles, and cost for gable, hip, shed, and flat roofs with pitch adjustments.

<iframe src="https://squarefootagecalculator.online/embed-roofing" width="100%" height="800" frameborder="0" style="border:1px solid #e2e8f0;border-radius:8px;"></iframe>