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Terms of Use

Plain-language terms covering what you can expect from this site, and what we ask of you.

Last updated: 1 January 2026

Using the tools

The tools are free to use for personal and commercial purposes. Anything you create with them is yours. You do not need permission or attribution to use the results.

No warranty

The tools are provided "as is" without warranty of any kind. We work hard to make every calculation correct, but results should be verified before being relied upon for anything important.

In particular, financial calculators are estimates and do not constitute financial advice, and health calculators such as BMI are general screening indicators rather than medical advice. Consult a qualified professional for decisions that matter.

Limitation of liability

To the fullest extent permitted by law, we are not liable for any loss or damage arising from your use of this site, including any decisions made on the basis of a result produced by a tool.

Acceptable use

You agree not to:

  • Attempt to disrupt, overload or gain unauthorised access to the site
  • Use automated systems to scrape the site at a rate that degrades it for others
  • Use the tools to create content that is unlawful or infringes the rights of others

Availability

We aim to keep the site online at all times but do not guarantee uninterrupted availability. Tools may be changed, added or withdrawn at any time.

Third-party content

Advertising displayed on this site is served by third parties. We do not endorse the products or services advertised, and any dealings you have with an advertiser are between you and them.

Contact

Questions about these terms? Get in touch.