Embed Free UK Calculators on Your Site
Add a free UK calculator to your blog, school site, forum or resource page in under a minute — just copy and paste a badge widget. No sign-up, no cost, no JavaScript required.
Run a UK personal-finance blog, a school or university resource page, a landlord forum or a local community site? You can give your readers instant access to our most popular calculators with these ready-made badge widgets. Each badge is plain HTML with inline styles — it works in WordPress, Squarespace, Wix, Ghost, Substack (HTML blocks), forum posts that allow HTML, and hand-coded pages alike. All calculations are kept up to date for the current UK tax year and checked against official GOV.UK and HMRC figures.
How it works — 3 steps
- 1. Pick a calculator from the list below.
- 2. Click "Copy code" to copy the badge snippet to your clipboard.
- 3. Paste it into any HTML block on your page. That's it — the badge links your readers straight to the live calculator.
Attribution is required: please keep the "Free calculator by UKCalculator.com" credit link that is built into every snippet. You may restyle colours and sizes to match your site, but the two links must stay intact and must not be hidden. That's the only condition — the widgets are otherwise free for personal, educational and commercial use.
1. Salary Calculator (Take-Home Pay)
Take-home pay after Income Tax, National Insurance, pension and student loan — updated for the 2025/26 tax year. Ideal for personal-finance blogs, job boards and career pages.
2. Council Tax Calculator
Council tax for every band (A–H) and every UK council, updated for 2026/27. Great for local news sites, moving guides and landlord resources.
3. Stone to KG Converter
Instant stone ⇄ kilogram conversion — one of the UK's most-searched weight tools. Perfect for fitness blogs, slimming groups and health forums.
4. UCAS Points Calculator
Convert A-level, BTEC and Scottish Higher grades into UCAS Tariff points for 2025/26 entry. Made for school sixth-form pages, teacher resource sites and student blogs.
5. State Pension Calculator
Estimate the UK State Pension based on National Insurance record, updated for 2025/26. Useful for retirement blogs, IFA sites and over-50s communities.
6. Mortgage Calculator
Monthly repayments plus stamp duty in one tool, updated for 2026/27. A natural fit for estate agents, property blogs and first-time-buyer guides.
7. VAT Calculator
Add or remove 20% (or 5%) VAT instantly. Ideal for small-business blogs, accounting resources, freelancer guides and invoicing help pages.
8. Pay Rise Calculator
See what a pay rise is really worth after tax, updated for 2025/26. Strong fit for HR blogs, union resource pages and salary-negotiation guides.
9. Percentage Calculator
Quick percentage maths — "what is 20% of £100?", percentage change, discounts and more. Works on any blog, homework-help or shopping-deals page.
10. BMI Calculator
Body Mass Index using NHS-aligned categories, with stones/pounds and metric inputs. Ideal for health blogs, gyms, slimming clubs and GP practice sites.
Just want to cite us in an article?
If a badge doesn't fit your layout, a plain text link is perfect too. Copy a ready-made citation:
Terms of use & FAQ
- Is it really free? Yes — for personal, educational and commercial websites. No sign-up or licence fee.
- Why no iframe? Our calculators run securely on our own domain, so we use lightweight link badges instead of iframes. Your page stays fast and there's no third-party script to slow you down or break.
- Can I change the styling? Yes — adjust colours, fonts and sizes freely. Just keep both links (the calculator link and the UKCalculator.com credit) visible and clickable, without nofollow added.
- Need a different calculator? We have 190+ tools — browse the full calculator directory and adapt any snippet above by swapping the URL and title.
- Questions or custom requests? Contact us — we're happy to help schools, charities and publishers with bespoke widgets.