Free Bra Size Calculator Widget for Your Website (Embed Code)
Embed Our Bra Size Calculator
Give your readers or customers an accurate bra size in seconds, right on your own page. The widget is free, ad-free and mobile-friendly, and works on WordPress, Shopify, Wix, Squarespace and plain HTML.
Add our free bra size calculator widget to any website by pasting one embed code into an HTML block. Visitors enter their snug underbust and full bust in inches or centimetres and get their size in US, UK, EU, French and Australian sizing, plus sister sizes. The widget is free, ad-free and mobile-friendly. Please keep the credit line under it.
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Copy the Embed Code
Paste this into an HTML or “Custom HTML” block where you want the calculator to appear:
The widget is free to use on any site. In return, please keep the credit line under the calculator.
Live Preview
This is exactly what your visitors will see:
What the Widget Does
| Feature | Detail |
|---|---|
| Inputs | Snug underbust and full bust, in inches or centimetres |
| Outputs | US, UK, EU, French and Australian sizes, plus sister sizes |
| Method | Modern “+0” band method, one cup step per inch (methodology) |
| Design | Neutral, mobile-friendly, no ads, no tracking cookies |
| Size | Lightweight standalone page, loaded lazily |
| Price | Free |
How to Add It to Your Site
Edit the post or page, add a “Custom HTML” block, paste the code and update.
Online Store → Pages (or a product description) → “Show HTML” (<>) → paste → save.
Add → Embed Code → Embed HTML → paste the code. Set the height to about 560 px.
Add a Code block, paste the code, and turn off “Display source”.
Paste the code where you want the calculator to appear.
Who Uses the Widget?
Shoppers who know their size in your sizing system return less.
Turn a sizing article into something readers can use straight away.
Help readers re-check their size through pregnancy and postpartum.
Give clients a starting size before their appointment.
More Free Bra Tools
Want to link readers to something more specific? These free tools work well alongside the widget:
- Sister size calculator: equal-volume sizes on a tighter or looser band
- Plus-size bra calculator: for bands of 38 and up
- Sports bra calculator: sizing by impact level
- Strapless bra size calculator: the firmer-band rule
- UK bra size calculator and global size converter
- Breast weight calculator: estimated weight by size
- AI bra size from photo
Writing about bra sizes? Our bra size statistics are free to cite with a link.
How Accurate Is It?
The widget uses the same core method as our full bra size calculator: the band is the snug underbust rounded to the nearest even number (no “+4”), and each inch of difference between full bust and band is one cup step. That gives a reliable starting size for most people. Fit still depends on breast shape and brand, so link your readers to our sister size calculator and breast shapes guide for the next step.
Frequently Asked Questions
Yes. It is free on any website, with no ads. We ask that you keep the small credit line under it.
No. It loads lazily as a small standalone page inside an iframe, so it does not affect your page load.
Yes. The widget is fully responsive and designed mobile-first.
US, UK, EU, French and Australian sizes, plus two sister sizes.
Yes. Change the height value in the code; 520–600 px fits most layouts.
Prefer the full calculator?
Our full calculator adds fit troubleshooting, shape guidance and more size systems.