Legal

Terms of Service

Please read these terms carefully before using WaterTankCalculator.com. By accessing or using this site, you agree to be bound by them.

Effective: October 10, 2026 Last updated: October 10, 2026 Jurisdiction: General / Global
Legal Agreement
Terms of Service

WaterTankCalculator.com — Effective October 10, 2026

Last updated: October 10, 2026 (previous version: April 19, 2026)
Important: All calculator results on this site are mathematical estimates intended for general informational purposes only. They are not a substitute for professional engineering, plumbing, or construction advice. Always verify critical calculations with a qualified professional.

01 Acceptance of Terms

By accessing or using WaterTankCalculator.com (the "Site"), you confirm that you have read, understood, and agree to these Terms of Service ("Terms"). If you do not agree, you must not use the Site.

These Terms apply to all visitors, users, and anyone else who accesses or uses the Site. We may update these Terms at any time. Continued use of the Site after changes are posted constitutes your acceptance of the revised Terms.

02 Description of Service

WaterTankCalculator.com provides free, browser-based calculators and guides for estimating water tank volume, capacity, household demand, pressure, flow rate, weight, treatment dosing, rainwater collection, irrigation, cost and emergency storage. All tools are provided "as is" at no charge and require no registration. The Site is funded by advertising served by Google AdSense.

We reserve the right to modify, suspend, or discontinue any part of the Site at any time without notice.

03 Accuracy of Results & Disclaimer

The calculators on this Site perform mathematical computations based on standard formulas and the values you enter. Results are estimates only.

WaterTankCalculator.com makes no warranty — express or implied — that the results produced by any calculator are accurate, complete, suitable for a specific purpose, or free from error. Real-world factors — such as wall thickness, material tolerances, temperature, the actual condition of pipes and fittings, and local site conditions — may not be fully accounted for, and the result can only be as good as the values you enter.

You are solely responsible for verifying all results before relying on them for any purchasing, construction, engineering, safety, or legal decision. We strongly recommend consulting a qualified engineer or plumber for any critical application — in particular for roof and structural loads, drinking-water treatment, pressure systems and fire-water storage, which are governed by local codes. If you find an error, please report it so we can correct the page.

04 No Professional or Technical Advice

Nothing on this Site constitutes professional engineering, plumbing, architectural, environmental, legal, financial, or any other professional advice. The content and tools are provided for general informational purposes only.

Always consult a licensed professional before making decisions involving structural loads, water safety, regulatory compliance, or significant financial expenditure.

Calculators and guides on the Site are reviewed for general technical accuracy by John Mac, PE. That review does not create an engineer–client relationship with you, is not a design or inspection of your system, and is not a sealed or stamped engineering document. Codes and requirements vary by country and locality; your local authority and the professionals you hire have the final word.

05 Permitted Use

You may use the Site and its results for lawful personal, educational or professional reference purposes — for example, a contractor checking a tank size for a client. You may not:

  • Reproduce, redistribute, or resell the Site's tools or content as your own product or service without written permission.
  • Attempt to reverse-engineer, scrape, or systematically download content in a way that places unreasonable load on our servers.
  • Use the Site in any way that violates applicable local, national, or international law or regulation.
  • Introduce malicious code, bots, or scripts that interfere with the Site's operation.
  • Misrepresent results produced by this Site as certified or professionally validated figures.

06 Intellectual Property

All content on this Site — including but not limited to text, code, design, graphics, calculator logic, and layout — is owned by or licensed to WaterTankCalculator.com and is protected by applicable copyright and intellectual property laws.

You are granted a limited, non-exclusive, non-transferable licence to access and use the Site, and to use the results you calculate, for the purposes described in Section 5. The Site's text, code, design and calculators may not be copied, reproduced, republished, or distributed without our prior written consent, except for brief quotations with attribution and a link to the page.

07 Third-Party Links & Content

The Site may contain links to third-party websites. These links are provided for convenience only. We do not endorse, control, or accept responsibility for any third-party content, products, or services. Visiting any linked site is entirely at your own risk.

Advertisements on the Site are selected and served by Google and its partners. An ad appearing on the Site is not an endorsement of the product, service or advertiser, and any dealings with an advertiser are solely between you and that advertiser.

08 Limitation of Liability

To the fullest extent permitted by law, WaterTankCalculator.com, its owners, operators, contributors, and affiliates shall not be liable for any:

  • Direct, indirect, incidental, or consequential damages arising from your use of, or inability to use, the Site.
  • Errors, inaccuracies, or omissions in calculator results.
  • Decisions — financial, structural, safety-related, or otherwise — made based on information or results from this Site.
  • Loss of data, revenue, or profit howsoever caused.
In jurisdictions that do not allow the exclusion of implied warranties or limitation of liability for consequential damages, our liability is limited to the maximum extent permitted by law.

09 Indemnification

You agree to indemnify, defend, and hold harmless WaterTankCalculator.com and its operators from and against any claims, liabilities, damages, losses, and expenses (including reasonable legal fees) arising out of or in connection with your use of the Site or violation of these Terms.

10 Privacy

Your use of the Site is also governed by our Privacy Policy, which is incorporated into these Terms by reference. By using the Site, you consent to the data practices described in that policy.

All calculator inputs are processed locally in your browser. We do not collect, store, or transmit the numbers you enter into any calculator. Messages you send through our contact form are handled as described in the Privacy Policy.

11 Cookies & Analytics

Google and its partners use cookies to show and measure the ads that fund the Site, including — where you allow it — personalised ads based on your visits to this and other websites. We may also use analytics tools (such as Google Analytics) to understand how visitors use the Site. Details, and how to opt out of personalised ads, are in our Privacy Policy.

You can disable cookies in your browser settings. Doing so will not affect the functionality of the calculators; you may still see ads, but they will not be personalised.

12 Changes to These Terms

We reserve the right to update or replace these Terms at any time. When we do, we will revise the "Last updated" date at the top of this page. It is your responsibility to check this page periodically for changes.

Material changes will be effective immediately upon posting. Your continued use of the Site after any changes constitutes your acceptance of the new Terms.

13 Governing Law

These Terms shall be governed by and construed in accordance with applicable law. Any disputes arising under these Terms shall be subject to the exclusive jurisdiction of the competent courts in the applicable jurisdiction.

If any provision of these Terms is found to be invalid or unenforceable, the remaining provisions will continue in full force and effect.

14 Contact Us

If you have questions about these Terms or the Site, please use our contact form. We aim to respond to all legitimate enquiries within a reasonable timeframe.

WaterTankCalculator.com
Website: watertankcalculator.com
For legal queries, please use our contact form.