These terms govern your use of Tools Core and the calculators and converters published on this site. By accessing or using the site you agree to these terms; if you do not agree with them, please do not use the tools. We may revise these terms from time to time, and the version published here is the one that applies. This page was last updated on 1 June 2026.
Acceptable use
You may use the tools freely for your own personal, educational, or commercial purposes. You agree not to misuse the site — for example, by attempting to disrupt its operation, scraping it at a rate that degrades service for others, or representing the tools or their output as your own product. The tools are provided for lawful use only.
Disclaimer — provided "as is"
Tools Core is provided "as is" and "as available", without warranties of any kind, whether express or implied, including but not limited to warranties of accuracy, reliability, fitness for a particular purpose, or uninterrupted availability. We make a genuine effort to keep the calculations correct and the site online, but we do not guarantee that the tools are free of errors or that they will always be available.
You use the tools at your own risk. The site is offered as a convenience, and the responsibility for how you use any result rests with you.
Estimates, not professional advice
The results produced by the calculators on Tools Core are estimates provided for general informational and educational purposes only. They are not professional advice and must not be relied upon as such. In particular, tools that touch on money, health, or other consequential decisions — including the mortgage, loan, debt-payoff, compound-interest, salary, and retirement calculators, the currency converter, the BMI calculator, and similar tools — do not constitute financial, investment, tax, legal, or medical advice.
A calculator cannot know your full circumstances. Before making any financial, health, or legal decision, you should consult a suitably qualified professional who can account for the details of your situation. Tools Core is a starting point for understanding a number, not a replacement for tailored advice.
Accuracy and availability
While we aim for correct formulas and sensible results, the tools may contain errors, rely on assumptions that do not match your case, or use reference data (such as exchange rates) that is not current. We do not warrant the accuracy, completeness, or timeliness of any result, and the site may be changed, suspended, or withdrawn at any time without notice.
Limitation of liability
To the fullest extent permitted by law, Tools Core and the people who maintain it will not be liable for any loss or damage — direct, indirect, incidental, consequential, or otherwise — arising from your use of the site, your inability to use it, or your reliance on any result it produces. This includes any decision you make on the basis of a calculation. Because the tools are free and provided as a convenience, this limitation is a condition of using them.
Privacy and external links
How we handle data and advertising cookies is described in our Privacy Policy. The site may link to third-party websites that we do not control and are not responsible for; those sites have their own terms and policies.
Changes and contact
We may update these terms as the site evolves. Continued use after a change means you accept the revised terms. If anything here is unclear, or you need to raise a legal or copyright matter, please reach us through the Contact page.