Terms of Service

Last updated: February 26, 2026

Welcome to CalcOnce. By accessing or using our website at www.calconce.com (the "Service"), you agree to be bound by these Terms of Service ("Terms"). If you do not agree to these Terms, please do not use the Service.

1. Description of Service

CalcOnce provides free online calculator tools for construction, finance, health, and everyday calculations. Our calculators are designed to provide estimates and general guidance—they are not substitutes for professional advice.

2. Disclaimer of Professional Advice

Financial Calculators

Our mortgage, loan, investment, and other financial calculators provide estimates based on the inputs you provide. Actual loan terms, interest rates, and financial outcomes may vary based on your credit history, lender requirements, market conditions, and other factors. Always consult a qualified financial advisor, accountant, or mortgage professional before making financial decisions.

Health Calculators

Our BMI, calorie, and other health calculators provide general estimates based on standard formulas. Results should not be used for medical diagnosis or treatment. Always consult a qualified healthcare provider for personalized health advice, especially before starting any diet, exercise, or treatment program.

Construction Calculators

Our concrete, lumber, roofing, and other construction calculators provide material estimates. Actual material requirements may vary based on site conditions, local building codes, waste factors, and other variables. Always verify calculations with a licensed contractor or engineer before purchasing materials or beginning construction.

3. Accuracy of Calculations

While we strive to provide accurate calculations, we cannot guarantee that all results are error-free. Users are responsible for verifying calculations and using appropriate professional judgment. CalcOnce shall not be liable for any errors, omissions, or inaccuracies in calculator results.

4. Acceptable Use

You agree to use the Service only for lawful purposes. You shall not:

• Use the Service in any way that violates applicable laws or regulations
• Attempt to interfere with or disrupt the Service or its servers
• Use automated tools to scrape, copy, or download content without permission
• Attempt to gain unauthorized access to any portion of the Service
• Use the Service to transmit malware, spam, or other harmful content
• Reproduce, duplicate, or resell any part of the Service without permission

5. Intellectual Property

All content on CalcOnce, including text, graphics, logos, calculator designs, and software, is the property of CalcOnce or its licensors and is protected by copyright and other intellectual property laws.

You may use our calculators for personal and commercial purposes. You may share links to our calculators and embed our widgets using the provided embed codes. You may not copy, modify, or distribute our calculator code or content without permission.

6. Embedded Calculators

We offer embeddable calculator widgets that you may include on your website. By embedding our calculators:

• You agree to keep the "Powered by CalcOnce" attribution visible and linked
• You may not modify the embed code to remove branding or alter functionality
• You accept responsibility for how the calculator is used on your site
• We reserve the right to revoke embed privileges for any site at our discretion

7. User Data and Privacy

Your use of the Service is also governed by our Privacy Policy, which describes how we collect, use, and protect your information. Calculator inputs are processed in your browser and are not stored on our servers.

8. Third-Party Links

The Service may contain links to third-party websites or resources. We provide these links for convenience only and are not responsible for the content, products, or services offered by third parties. Your use of third-party websites is at your own risk.

9. Advertising

The Service displays advertisements from third-party ad networks, including Google AdSense. These advertisements help us provide free calculator tools. We are not responsible for the content of third-party advertisements or any products/services they promote.

10. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, CALCONCE AND ITS OWNERS, EMPLOYEES, AND AFFILIATES SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES ARISING FROM YOUR USE OF THE SERVICE, INCLUDING BUT NOT LIMITED TO:

• Errors or inaccuracies in calculator results
• Financial losses based on calculator estimates
• Personal injury or property damage from construction projects
• Health decisions based on calculator results
• Loss of data or business interruption

IN NO EVENT SHALL OUR TOTAL LIABILITY EXCEED THE AMOUNT YOU PAID TO USE THE SERVICE (WHICH IS ZERO FOR FREE USERS).

11. Indemnification

You agree to indemnify and hold harmless CalcOnce and its owners, employees, and affiliates from any claims, damages, or expenses arising from your use of the Service, your violation of these Terms, or your violation of any rights of a third party.

12. Modifications to Service

We reserve the right to modify, suspend, or discontinue any part of the Service at any time without notice. We may also update these Terms from time to time. Continued use of the Service after changes constitutes acceptance of the modified Terms.

13. Termination

We may terminate or suspend your access to the Service at any time, without prior notice, for conduct that we believe violates these Terms or is harmful to other users, us, or third parties.

14. Governing Law

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

15. Severability

If any provision of these Terms is found to be unenforceable or invalid, that provision shall be limited or eliminated to the minimum extent necessary, and the remaining provisions shall remain in full force and effect.

16. Contact Information

If you have questions about these Terms, please contact us at:

Email: legal@calconce.com