All of our cycling calculators are free to embed on your own website, blog or intranet — no sign-up, no API key. Pick a tool below, copy the snippet, and paste it where you want the calculator to appear. It resizes itself to fit, works on mobile, and carries a small “Powered by idrathercycle.org” credit.
How it works
- Copy the
<iframe>snippet for the calculator you want. - Paste it into your page’s HTML.
- Add the small host script once per page (it auto-resizes every idrathercycle calculator on the page so there’s no scrollbar):
<script async src="https://idrathercycle.org/assets/embed-host.js"></script>
Cycle to Work Savings Calculator
Shows how much a UK employee saves on a bike through the Cycle to Work scheme, based on salary and bike cost.
<iframe src="https://idrathercycle.org/embed/c2w" width="100%" height="440"
style="border:0" loading="lazy" title="Cycle to Work Savings Calculator"></iframe>
<script async src="https://idrathercycle.org/assets/embed-host.js"></script>Cycle vs Car: Commute Cost & CO₂ Calculator
Annual fuel cost and CO₂ saved by cycling a commute instead of driving it.
<iframe src="https://idrathercycle.org/embed/commute-cost" width="100%" height="560"
style="border:0" loading="lazy" title="Commute Cost and CO2 Calculator"></iframe>
<script async src="https://idrathercycle.org/assets/embed-host.js"></script>What Size Bike Do I Need?
Suggests a frame size from the rider’s height for road, hybrid and mountain bikes.
<iframe src="https://idrathercycle.org/embed/bike-size" width="100%" height="440"
style="border:0" loading="lazy" title="What Size Bike Do I Need"></iframe>
<script async src="https://idrathercycle.org/assets/embed-host.js"></script>Electric Bike Running Cost (UK)
Estimates the yearly charging cost of an e-bike at current UK electricity prices.
<iframe src="https://idrathercycle.org/embed/ebike-cost" width="100%" height="460"
style="border:0" loading="lazy" title="Electric Bike Running Cost UK"></iframe>
<script async src="https://idrathercycle.org/assets/embed-host.js"></script>Cycling Calorie Calculator
Estimates calories burned cycling by body weight, effort level and time or distance.
<iframe src="https://idrathercycle.org/embed/calorie" width="100%" height="480"
style="border:0" loading="lazy" title="Cycling Calorie Calculator"></iframe>
<script async src="https://idrathercycle.org/assets/embed-host.js"></script>FAQ
Is it really free?
Yes. The calculators are free to embed on any site, with no sign-up and no usage limits.
Will it slow my page down?
No. Each widget is a small, self-contained iframe with no ads or third-party tracking, and it loads lazily.
Does it link back to you?
Each widget shows a small “Powered by idrathercycle.org” credit that links to our site. That link is how we keep the tools free — please leave it in place.
Can I report a problem?
If a calculator looks wrong or a figure is out of date, email [email protected].