Terms of Use
Last updated: October 10, 2026
Using the site
Dayob provides free calculators and articles for personal, educational and general informational use. You may use the tools as often as you like. You agree not to misuse the site, including attempting to disrupt it, scrape it at a volume that degrades service, or use the contact form to send spam.
No professional advice
Results and articles are general information, not professional engineering, financial, tax, legal, medical or educational advice. You are responsible for checking results before relying on them. Read our disclaimer.
Accuracy
We work hard to keep formulas and figures correct and up to date, but we do not guarantee that the site is free of errors or always available. If you spot a mistake, please let us know.
Intellectual property
The text, design, code and logo of Dayob are owned by Dayob unless stated otherwise. Photos are used under the Unsplash License and credited on each page. You may link to any page and quote short excerpts with attribution; please do not republish whole articles.
Third-party links and ads
The site links to external websites and may display advertising from third parties. We do not control and are not responsible for their content.
Limitation of liability
To the fullest extent permitted by law, Dayob is not liable for any loss or damage arising from your use of, or reliance on, the site or its results.
Changes
We may update these terms. Continued use of the site after changes means you accept the new terms.