Terms of Use

Last updated: 1 June 2026

These terms apply to your use of calctoolsbase.com, a free calculator library operated by Takenick Innovation. By using the site you accept these terms. If you don't, please don't use the site.

1. What we provide

calctoolsbase publishes a collection of 354 calculators that run entirely in your browser. The site is provided free of charge. We make no promises about uptime, accuracy beyond best effort, or continued availability of any specific calculator.

2. No professional advice

The calculators on this site are general-purpose tools. They are not:

• medical advice, diagnosis, or treatment (BMI, BMR, blood-alcohol, medication dose, pregnancy calculators are estimates only — see each page for safety notes);
• legal advice;
• tax preparation or filing (income-tax estimates use commonly-published rates and may not match your actual return);
• financial advice or a recommendation to invest (SIP, retirement, mutual fund, crypto profit calculators are projections, not promises).

For decisions that affect your health, money, taxes, or legal rights, please consult an appropriately licensed professional.

3. Acceptable use

You may use the calculators for personal, educational, and reasonable commercial reference. You agree not to:

• scrape, mirror, or republish substantial portions of the site without permission;
• interfere with the site's operation (e.g. denial-of-service attempts, vulnerability probes);
• misrepresent calctoolsbase output as the work of a licensed professional;
• use the calculators in any way that violates applicable law.

4. Intellectual property

The site's design, copy, code, and curated lists are © Takenick Innovation. The underlying mathematical formulas, of course, are public knowledge — you can re-derive every result here from a textbook.

The brand names "calctoolsbase", "imgtoolsbase", "pdftoolsbase", and the Takenick Innovation name are used by us; please don't pass off your own site or product as one of ours.

5. Advertising

The site displays advertisements served by Google AdSense. Ads are clearly labelled and are not editorial recommendations. We have no relationship with individual advertisers and do not endorse any specific advertiser, product, or service shown in an ad slot.

See our Privacy Policy for how advertising data is handled.

6. Third-party links

Some pages link to external resources (carrier websites, tax authorities, health organisations, our sister sites imgtoolsbase and pdftoolsbase). We do not control third-party sites and are not responsible for their content, accuracy, or practices.

7. Warranty and liability

The site and the calculators are provided "as is", without warranty of any kind, express or implied — including warranties of merchantability, fitness for a particular purpose, accuracy, and non-infringement.

To the maximum extent permitted by law, Takenick Innovation and its contributors will not be liable for any direct, indirect, incidental, consequential, special, or punitive damages arising from your use of (or inability to use) the site, including but not limited to financial loss, medical decisions, legal consequences, or business decisions made on the basis of calculator output.

If you live in a jurisdiction that doesn't allow some of these limitations, the limitations apply to the maximum extent your local law allows.

8. Changes

We may change these terms from time to time. The "Last updated" date at the top will reflect the most recent revision. Continued use of the site after a change indicates acceptance.

9. Governing law

These terms are governed by the laws of India, without regard to its conflict-of-laws rules.

10. Contact

Questions: contact@calctoolsbase.com.