Free Calculator Widgets for Your Website
Give your readers a working calculator in 30 seconds. Copy, paste, done — no signup, no cost, and it updates itself forever.
1. Pick a widget
Choose the calculator your readers need below. Each preview is the real tool, running live.
2. Copy the code
Hit "Copy embed code". The snippet keeps your site fast with lazy loading and a responsive frame.
3. Paste it anywhere
Drop it into any blog post, sidebar, or product page. It works in WordPress, Shopify, and plain HTML — no signup, free forever.
Percent Of Calculator
What is X% of Y — the everyday percentage widget for blogs and shops.
Size:
<iframe src="https://www.percentlab.app/embed/basic-percent/percent-of" width="100%" height="660" style="border:1px solid #e5e7eb;border-radius:12px;max-width:480px" loading="lazy" title="Percent Of Calculator by PercentLab"></iframe> <p style="font-size:12px;color:#6b7280"><a href="https://www.percentlab.app/calculators/basic-percent/percent-of">Percent Of Calculator</a> powered by <a href="https://www.percentlab.app/">PercentLab</a></p>
Discount Calculator
Sale prices in one click — made for deal blogs and coupon sites.
Size:
<iframe src="https://www.percentlab.app/embed/finance/discount" width="100%" height="700" style="border:1px solid #e5e7eb;border-radius:12px;max-width:480px" loading="lazy" title="Discount Calculator by PercentLab"></iframe> <p style="font-size:12px;color:#6b7280"><a href="https://www.percentlab.app/calculators/finance/discount">Discount Calculator</a> powered by <a href="https://www.percentlab.app/">PercentLab</a></p>
Tip Calculator
Restaurant tips without mental math — for food and travel blogs.
Size:
<iframe src="https://www.percentlab.app/embed/daily/tip-calculator" width="100%" height="700" style="border:1px solid #e5e7eb;border-radius:12px;max-width:480px" loading="lazy" title="Tip Calculator by PercentLab"></iframe> <p style="font-size:12px;color:#6b7280"><a href="https://www.percentlab.app/calculators/daily/tip-calculator">Tip Calculator</a> powered by <a href="https://www.percentlab.app/">PercentLab</a></p>
Looking for the full versions? Browse all PercentLab calculators.