Add our tools to your site, free
Publishers, bloggers and educators: you're welcome to embed our interactive calculators on your own pages. They're free, mobile-friendly, and carry no signup or ads. One line of code each.
Fee calculator
Shows the 30-year drag of platform and fund fees on a savings plan. Copy this snippet into your page:
<iframe src="https://stonekeel.com/embed/fee-calculator" title="Fee calculator by Stonekeel" width="100%" height="580" style="border:0;max-width:640px;width:100%" loading="lazy"></iframe>FX fee comparison
Ranks European brokers by what currency conversion actually costs. Copy this snippet into your page:
<iframe src="https://stonekeel.com/embed/fx-fee-comparison" title="FX fee comparison by Stonekeel" width="100%" height="640" style="border:0;max-width:640px;width:100%" loading="lazy"></iframe>FIRE calculator
Works out someone’s financial-independence number and date. Copy this snippet into your page:
<iframe src="https://stonekeel.com/embed/fire-calculator" title="FIRE calculator by Stonekeel" width="100%" height="640" style="border:0;max-width:640px;width:100%" loading="lazy"></iframe> The only condition: keep the "Powered by Stonekeel"
link intact. Adjust the height if your layout needs it; each widget scales to the
width of its container up to 640px.
Want a different tool embedded, or a custom version? Get in touch and we'll set it up.