Frequently Asked Questions
Are the calculators free to use?
Yes – all calculators on XYRA.UK are completely free, with no registration or hidden fees.
Do you store my data?
No. All calculations are performed locally in your browser. We never collect, store, or transmit any data you enter.
How accurate are the calculators?
Each tool is built using peer‑reviewed formulas and validated against standard reference protocols. We constantly update them to reflect the latest scientific consensus.
Can I use these calculators offline?
Once the page is loaded, the JavaScript runs entirely client‑side. You can use them offline if you’ve visited the page while online (browser caching applies).
Do you have an API?
Not yet, but we’re considering it. If you’re interested, please contact us.
How can I suggest a new calculator?
We welcome suggestions! Please reach out with details about the formula and use case.
Are you affiliated with any university or company?
No – we are an independent team of scientists and developers who built this site in our spare time.