Last updated 17 September 2026

Terms of Use

The rules for using hundredhour.com and its calculators.

About these terms

These terms apply to your use of hundredhour.com, including its calculators and guides. By using the website you agree to them. If you do not agree, please do not use the website.

Using the calculators

The calculators and guides are provided for general information to help you convert and check worked time. Results depend on the figures you enter and may be rounded.

  • Always check results against your employer’s own timesheet, payroll and leave rules before relying on them.
  • Nothing on this website is financial, legal, payroll or HR advice.
  • If a result does not look right, please let us know.

No guarantee

We work hard to keep the calculators accurate and available, but we provide the website “as is”. We do not guarantee that it will always be available, error-free or suitable for your particular purpose.

Our responsibility to you

We are not responsible for any loss arising from your use of, or reliance on, the website or its results, including any underpayment, overpayment or leave miscalculation. This does not affect any liability that cannot be limited or excluded under the law of England and Wales, such as liability for death or personal injury caused by negligence, or for fraud.

Acceptable use

You must not:

  • use the website in any way that breaks the law;
  • try to gain unauthorised access to the website, its servers or its data;
  • interfere with the website’s operation, including by sending automated or excessive requests; or
  • copy, embed or republish the calculators on another website without our written permission.

Intellectual property

The content, design, calculators, name and logo of Hundred Hour belong to us or our licensors. You may use the website for your own personal and work purposes, but you may not reproduce it for commercial use without our permission.

Independence

Hundred Hour is an independent website. It is not affiliated with, or endorsed by, the NHS, NHS Employers or any other employer or payroll provider.

Links to other websites

We may link to other websites for further information. We are not responsible for their content or how they handle your information.

Privacy

Our Privacy Policy explains how we handle personal information.

Changes to these terms

We may update these terms from time to time. The date at the top of this page shows when they were last changed. Continuing to use the website after a change means you accept the updated terms.

Governing law

These terms are governed by the law of England and Wales, and the courts of England and Wales have jurisdiction over any dispute.

Contact

Questions about these terms? Please use our contact form or email hello@hundredhour.com.