Reach people at the
moment they calculate
149 free calculators across finance, health, and more. Every user is actively making a decision. Put your products where they matter.
High intent
Someone calculating mortgage repayments is closer to buying a house than someone reading a blog post about mortgages.
Perfect context
Your product appears right next to the calculation it solves. A bank's mortgage deal shown alongside a mortgage calculation.
Exclusive placement
One sponsor per calculator. No competing ads. Your product is the recommendation, not one of twenty in a sidebar.
Sponsored placements
Your product featured on the calculator page that matches it. Users see your offer right after they get their result. One sponsor per calculator, no auction, no competing ads.
Pick your calculator
Choose the calculator that matches your product. Mortgage calculator for lenders, pension calculator for pension providers, and so on.
We feature your product
Your product appears in a dedicated recommendation section below the calculator results. Your brand, your description, your call to action.
Users click through
Every click tracked and reported monthly. Real users who just ran the numbers and want to take the next step.
Available for sponsorship
Mortgage Calculator
AvailableIdeal for: Banks & brokers
Your mortgage products shown to users actively calculating repayments.
UK Pension Calculator
AvailableIdeal for: Pension providers
Your pension plans featured alongside retirement projections.
Compound Interest Calculator
AvailableIdeal for: ISA & investment platforms
Your investment products shown to users exploring compound growth.
Loan Calculator
AvailableIdeal for: Lenders & comparison sites
Your loan products shown to users calculating repayment options.
UK Stamp Duty Calculator
AvailableIdeal for: Estate agents & conveyancers
Your services shown to users calculating property purchase costs.
FIRE Calculator
AvailableIdeal for: Investment platforms
Your funds and ISAs shown to users planning early retirement.
Sponsorship pricing
Single calculator
Your product featured on one calculator page
£49/month
Category bundle
All calculators in a category (e.g. all UK tax calculators)
£149/month
Exclusive partner
All finance calculators site-wide. One partner, maximum reach.
Custom
All placements include monthly click reports and are clearly marked as sponsored
What it looks like
Your product appears in a dedicated section below the calculator. Styled to match the site, with your branding and call to action.
Recommended
Compare Mortgage Deals
Your Brand Here
Your product description. "Compare 20,000+ mortgage deals from 90+ lenders. Free, whole-of-market advice."
* Sponsored placement. Learn more
Example: Sponsored placement on the Mortgage Calculator page
Embed our calculators
Add any of our calculators to your own website. One line of HTML. Free with a small "Powered by" badge, or white-label for a clean integration.
Pick a calculator
Choose from 149 tools across finance, health, engineering, everyday math, and more.
Copy the code
One line of HTML. Configure width and height if you want, then copy.
Paste and publish
Works on any website. WordPress, Webflow, Squarespace, custom HTML.
Pro
- Everything in Free
- Badge removed (white-label)
- Custom colours
- 5 domains
- Priority support
Enterprise
- Everything in Pro
- Unlimited domains
- Custom calculators built to spec
- SLA with uptime guarantee
Embed builder
Pick a calculator, set the size, and copy the code.
e.g. 100%, 600px, 40rem
Embed URL
https://boring-math.com/embed/uk-100k-tax-trap-calculator
Embed code
<iframe src="https://boring-math.com/embed/uk-100k-tax-trap-calculator" width="100%" height="700" frameborder="0" style="border:none;border-radius:12px;" loading="lazy"></iframe>Live preview
Available calculators
Sponsor or embed any of these. Click a card to load it in the embed builder.
Mortgage Calculator
Monthly payments, total interest, and amortisation schedules.
Compound Interest
See how investments grow over time with compounding.
BMI Calculator
Body mass index with healthy weight ranges.
Tip Calculator
Calculate tips and split bills between friends.
Loan Calculator
Monthly payments and total interest for any loan.
FIRE Calculator
Financial independence projections with Lean, Fat, and Coast FIRE.
UK £100k Tax Trap
Calculate how the 60% marginal rate affects your take-home pay.
UK Pension
Project your retirement pot with employer and personal contributions.
UK Stamp Duty
SDLT, LBTT, and LTT calculations for property purchases.
UK Tax Calculator
Income tax, National Insurance, and take-home pay for any salary.