Last updated: August 2026

General information only

Everything on Key Calculators — the calculators, their results, and any explanatory text — is published in good faith, for general informational purposes. I make a real effort to keep formulas, data, and results accurate and current, but I can’t guarantee completeness or accuracy for every possible use case.

Not professional advice

Nothing on this site is financial, medical, legal, or tax advice. A calculator’s result is a starting point, not a final answer — for any decision that actually matters, check the number against a qualified professional before relying on it.

Your responsibility

Using this site and its calculators is your choice, and what you do with the results is your responsibility. I’m not liable for outcomes or decisions based on information from this site.

Changes to this disclaimer

This page may be updated from time to time as the site grows. The date at the top reflects the most recent revision, and continuing to use the site after a change means you accept it.

Questions

Get in touch through the contact page if anything here needs clarifying.