Terms of Service

By using CalcTower, you agree to these terms. If you do not agree with them, please do not use the site.

CalcTower provides free online calculators and reference content across areas such as maths, percentages, finance, academic grading, time and dates, unit conversion, business metrics, fashion and beauty sizing, home projects, productivity, and colour and design.

The calculators are provided for general informational and educational use. They run in your browser and are available without creating an account.

Results depend entirely on the values you enter and on the assumptions, formulas, rounding, and conventions each calculator uses. A result is an estimate to help you think through a problem — it is not professional advice and not a guarantee of any real-world outcome.

Please read the Disclaimer, which forms part of these terms.

You may use CalcTower for personal, educational, or business purposes, free of charge.

You agree not to:

• Attempt to gain unauthorised access to the site, its administration area, its servers, or any connected system.
• Interfere with or disrupt the site, including through automated requests that place an unreasonable load on it.
• Attempt to probe, scan, or test the vulnerability of the site or bypass any security measure.
• Copy or redistribute substantial portions of the site's content or code as your own product.
• Use the site in any way that breaks applicable law.

The CalcTower name, site design, written content, and calculator implementations are the property of the site operator, except where third-party open-source components are used under their own licences.

You are welcome to use calculator results in your own work. You may not republish the site’s content or reproduce the site itself without permission.

CalcTower is provided on an “as available” basis. We may add, change, or remove calculators and content, and the site may be unavailable at times for maintenance or for reasons outside our control. We do not guarantee uninterrupted availability.

CalcTower is provided “as is” and “as available”, without warranties of any kind, whether express or implied, including any implied warranties of merchantability, fitness for a particular purpose, or accuracy. We do not warrant that calculator results will be error-free or suitable for your specific circumstances.

To the fullest extent permitted by applicable law, the site operator will not be liable for any loss or damage arising from your use of, or reliance on, this site or its calculator results — including financial loss, loss of data, or any indirect or consequential loss.

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The site may reference or link to third-party resources. We do not control those resources and are not responsible for their content or practices.

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We may update these terms as the site changes. Continued use of CalcTower after an update means you accept the revised terms.

Questions about these terms can be sent via the Contact page.