Last updated: 2026-09-10
These terms cover your use of PercentFox (the “Site”). By using the Site you agree to them. They are meant to be short and readable; if anything is unclear, the contact page has an email address.
What the Site is for
PercentFox is a free set of calculators and explanatory guides for everyday percentage and money math. It is provided for general information and education. It is a tool to help you work something out and understand the method — not a substitute for professional advice or your own judgement.
Accuracy of results
Every calculation runs in your browser using standard arithmetic, and results are rounded to two decimal places for display (the underlying calculation is not rounded). We work to keep the formulas, examples, and guides correct, but we cannot guarantee that every result is accurate, complete, or right for your particular situation.
You are responsible for checking any figure before you rely on it — especially for anything involving money, taxes, deadlines, or decisions that matter.
Not professional advice
Nothing on the Site is financial, tax, accounting, investment, or legal advice, and using it does not create any professional relationship. For decisions with real consequences, speak to a qualified professional who can consider your full circumstances.
No warranty
The Site is provided “as is” and “as available,” without warranties of any kind, whether express or implied — including any implied warranties of accuracy, reliability, availability, or fitness for a particular purpose. We do not warrant that the Site will be uninterrupted, error-free, or free of harmful components.
Limitation of liability
To the fullest extent permitted by law, PercentFox and the people behind it will not be liable for any loss or damage — including lost money, lost data, or lost opportunity — arising from your use of the Site or your reliance on any result or content on it. The Site is free to use, and you use it at your own risk.
Using the content
You may use the calculators and read the guides for your own personal, non-commercial reference. The PercentFox name, logo, design, wording, and code are owned by us or used under licence and are protected by intellectual-property law. Please do not copy, republish, redistribute, scrape, or build a competing service from the Site’s content without written permission. Sharing a link to a page is always fine.
Other sites and services
The Site relies on third-party services to run (for example, web hosting) and may in future use others such as analytics or advertising. It also links to external websites for reference. We do not control those services or sites and are not responsible for their content or practices; their own terms and privacy policies apply. See our Privacy Policy for how data is handled.
Changes to these terms
We may update these terms from time to time. Material changes will be reflected by the “Last updated” date at the top of this page. Continuing to use the Site after a change means you accept the current version.
Contact
Questions about these terms can be sent to hello@percentfox.com.