Add any of our UK building calculators to your own website or blog for free. Copy one line of code: no sign-up, no adverts inside the calculator, and it resizes itself automatically.
Last updated: 17 October 2026
1. Choose a calculator
2. Copy the code
Paste this into your page's HTML where you want the calculator to appear. In WordPress, use a Custom HTML block.
3. Preview
Why add our calculators?
Free forever: no account, no fees, no limits.
No adverts or tracking cookies inside the calculator. Your visitors only see the calculator.
UK-specific: metric units and UK pack sizes (25kg bags, 850kg bulk bags, 215mm bricks).
Responsive: works on phones and fits any column. The height adjusts automatically.
Always up to date: improvements we make appear on your site automatically.
Terms of use
You're welcome to embed any calculator on any website, including commercial sites such as builders' merchants, trades and blogs. Please keep the credit line under the calculator, and don't modify the calculator or present it as your own. Results are estimates; our terms & conditions apply.
Questions or want a custom version for your business? Get in touch.