Terms & Conditions

By accessing or using CalcInstant, you agree to be bound by these Terms & Conditions. If you do not agree, do not use the site.

Use of the Service

CalcInstant provides free online calculator tools for informational and educational purposes. All tools run entirely in your browser — no data is sent to any server. You may use the site without creating an account, providing personal information, or accepting cookies beyond what third-party ad services require. Calculators are provided for general reference and should not be the sole basis for financial, medical, legal, or construction decisions.

Not Professional Advice

The calculators on this site are not a substitute for professional advice:

• A mortgage calculator cannot replace a loan officer's pre-approval
• A BMI calculator cannot replace a doctor's assessment
• A concrete calculator cannot replace an engineer's structural review

Always consult a qualified professional before making decisions based on these tools. I build these tools because I find math useful, not because I am licensed to give advice in any of these fields.

Accuracy Disclaimer

I take accuracy seriously — every formula is sourced from the relevant authority (IRS, WHO, ISO, USDA) and tested against known examples before shipping. That said, calculators can contain bugs, formulas change, and rounding differences exist between implementations. If you find an error, please report it through the contact page so I can fix it. Results should always be independently verified before making a decision with real consequences.

No Warranty

All calculators and content are provided "as is" without any warranty, express or implied. While I strive for accuracy, results should be verified before making financial, health, or legal decisions. CalcInstant and its operators disclaim all warranties, including merchantability and fitness for a particular purpose.

Limitation of Liability

CalcInstant and its operators shall not be liable for any direct, indirect, incidental, consequential, or punitive damages arising from the use or inability to use the calculators or content on this site. You use the tools entirely at your own risk. In jurisdictions that do not allow the exclusion of certain warranties, liability is limited to the fullest extent permitted by law.

Intellectual Property

All content, design, code, and tool implementations on CalcInstant are the property of CalcInstant unless otherwise noted. You may not reproduce, distribute, modify, create derivative works from, or commercially exploit any part of this site without prior written permission. Individual use of the calculators — including bookmarking, sharing links, and referencing results — is always permitted.

Third-Party Services

CalcInstant uses Google AdSense for advertising. Google may use cookies to serve personalized ads based on your browsing history across sites. You can manage ad personalization settings directly through Google's My Ad Center. See our Privacy Policy for more details on how third-party services handle your data.

External Links

This site may contain links to third-party websites or services, including related tools and informational resources. I link to specific authoritative sources (IRS, CDC, WHO, official government pages) when citing data. Links to other sites are provided for convenience only and do not constitute endorsement. I am not responsible for the content, accuracy, or practices of any linked third-party site.

Governing Law

These terms shall be governed by and construed in accordance with the laws of the United States, without regard to its conflict of law provisions. Any disputes arising from these terms shall be resolved in the courts of the United States.

Changes to These Terms

We reserve the right to update these terms at any time. Changes are effective immediately upon posting to this page. The "Last updated" date at the top of this page reflects the most recent revision. Continued use of the site after changes are posted constitutes acceptance of the new terms. I recommend reviewing this page periodically for any updates.

Contact

Questions about these terms? Contact us through our contact page or email hello@calcinstant.com.