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Calculate Lightning Distance In Seconds

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Terms & Conditions

Last Updated: September 1, 2025

1. Definitions

“Website” means the Lightning Distance Calculator website, including the calculator, blog, and any related pages, features, or content. “Services” means access to and use of the Website and its functionality, including the lightning distance calculator. “Content” means all text, data, graphics, logos, designs, compilations, and other materials made available on or through the Website. “We,” “us,” or “our” means the operator/owner of the Website. “You” or “user” means any individual or entity that accesses or uses the Website.

2. Acceptance of Terms

These Terms constitute a binding agreement between you and us. Your access to or use of the Website constitutes acceptance of these Terms. We may update these Terms from time to time as set out in Section 24 (Changes to the Terms).

3. Purpose and Informational Nature

The Website is provided solely for informational and educational purposes. The lightning distance calculator and the blog are general information tools and do not provide professional, scientific, emergency, or safety advice.

4. License and Access; Reservation of Rights

Subject to your compliance with these Terms, we grant you a limited, revocable, non-exclusive, non-transferable license to access and use the Website for personal, non-commercial purposes. We reserve all rights not expressly granted herein. You acquire no ownership rights in the Website or Content.

5. Prohibited Conduct

6. Eligibility and Age Restriction

The Website may only be used by individuals who have reached the minimum age of digital consent in their jurisdiction. By using the Website, you represent and warrant that you meet this eligibility requirement.

7. No Emergency or Safety Service

The calculator provides an estimated distance based on the time between a lightning flash and thunder. It is not a substitute for emergency services, weather alerts, or professional meteorological advice. Do not rely on the Website for safety-critical decisions.

8. Calculator Methodology; Assumptions and Limitations

(a) Methodology. The calculator utilizes a “seconds-to-sound” approximation to estimate distance from the time interval between lightning and thunder.

(b) Assumptions. The approximation assumes typical atmospheric conditions and generalized average speeds of sound; actual conditions (temperature, humidity, altitude, wind, terrain) and human observation variance may materially affect results.

(c) Limitations. The results are estimates only, are not precise measurements, and are unsuitable for professional, scientific, navigational, or safety-critical use. Device timing accuracy, delayed perception of sound, overlapping thunder events, and environmental noise may further reduce accuracy.

9. Content Disclaimer (Blog)

Blog articles are provided for general informational purposes only. They do not constitute meteorological, scientific, legal, or professional advice. You should verify information through official or trusted sources and exercise independent judgment.

10. No Professional Advice

Nothing on the Website constitutes certified weather, safety, emergency, or professional guidance. Users should follow official sources (including, without limitation, the National Weather Service (NWS), NOAA, and local emergency authorities).

11. Intellectual Property; Feedback

(a) Ownership. The Website and all Content are owned by us or our licensors and are protected by intellectual property and other laws.

(b) Restrictions. Except as expressly permitted in these Terms, you may not reproduce, distribute, modify, publicly display, or create derivative works from the Website or Content.

(c) Feedback. If you provide suggestions, ideas, or feedback, you grant us a perpetual, irrevocable, worldwide, royalty-free license to use and exploit such feedback without restriction or compensation to you.

12. User-Generated Content

If the Website enables users to post, submit, or share content (“User Content”), you retain ownership of your User Content but grant us a worldwide, non-exclusive, royalty-free, sublicensable, and transferable license to use, reproduce, distribute, and display such content for the operation of the Website. You represent that you own or have the necessary rights to submit User Content and that it does not infringe third-party rights or violate applicable laws. We reserve the right to remove or restrict any User Content at our discretion.

13. Third-Party Links, Services, and Advertisements

The Website may contain links to third-party websites, services, advertisements, or affiliate promotions (collectively, “Third-Party Services”). We do not control, endorse, or assume responsibility for Third-Party Services. Your interactions with Third-Party Services are solely between you and the applicable third party and may be subject to their terms and privacy policies. Certain links may generate revenue for us.

14. Privacy; Cookies

Your use of the Website is also governed by our Privacy Policy, which explains how we collect, use, and protect information. The Privacy Policy is incorporated into these Terms by reference. Please review it carefully.

15. Availability; Modifications; Maintenance

We do not guarantee that the Website or any Content will always be available or uninterrupted. We may suspend, withdraw, or restrict availability for business or operational reasons, including maintenance, upgrades, or security needs. We may modify or discontinue any feature at any time without notice. Users have no claim for compensation or damages in the event of modification, suspension, or discontinuance.

16. Open-Source and Third-Party Components

The Website may incorporate open-source or third-party software. Use of such components may be subject to separate licenses. In the event of a conflict between these Terms and the applicable third-party license, the third-party license will control with respect to that component.

17. Disclaimer of Warranties

THE WEBSITE AND ALL CONTENT AND SERVICES ARE PROVIDED ON AN “AS IS” AND “AS AVAILABLE” BASIS, WITHOUT WARRANTIES OF ANY KIND, WHETHER EXPRESS, IMPLIED, OR STATUTORY. WITHOUT LIMITATION, WE DISCLAIM ALL IMPLIED WARRANTIES OF ACCURACY, RELIABILITY, MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND NON-INFRINGEMENT, AND ANY WARRANTIES ARISING OUT OF COURSE OF DEALING OR USAGE OF TRADE. WE DO NOT WARRANT THAT THE WEBSITE WILL BE ERROR-FREE, UNINTERRUPTED, SECURE, OR FREE OF HARMFUL COMPONENTS, OR THAT DEFECTS WILL BE CORRECTED.

18. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, IN NO EVENT SHALL WE BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES, OR ANY LOSS OF PROFITS, REVENUE, DATA, GOODWILL, OR OTHER INTANGIBLE LOSSES, ARISING OUT OF OR IN CONNECTION WITH YOUR ACCESS TO OR USE OF (OR INABILITY TO USE) THE WEBSITE OR CONTENT, WHETHER BASED ON WARRANTY, CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY, OR ANY OTHER LEGAL THEORY, EVEN IF WE HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. TO THE EXTENT ANY DIRECT DAMAGES ARE NOT EXCLUDED, OUR TOTAL LIABILITY SHALL NOT EXCEED ONE HUNDRED U.S. DOLLARS (US $100) OR THE AMOUNT YOU PAID (IF ANY) TO ACCESS THE WEBSITE IN THE TWELVE (12) MONTHS PRECEDING THE EVENT GIVING RISE TO LIABILITY, WHICHEVER IS GREATER.

19. Indemnification

You agree to defend, indemnify, and hold harmless us and our affiliates, and our respective officers, directors, employees, contractors, and agents, from and against any and all claims, liabilities, damages, losses, and expenses (including reasonable attorneys’ fees) arising out of or in any way connected with: (a) your access to or use of the Website or Content; (b) your violation of these Terms; or (c) your violation of any law or third-party right.

20. Termination; Suspension

We may suspend or terminate your access to the Website at any time, with or without notice, for any reason, including if we believe you have violated these Terms or engaged in fraudulent or unlawful activity. Upon termination, Sections that by their nature should survive (including, without limitation, Sections 8, 9, 11–13, and 17–27) shall survive.

21. International Use; Compliance

The Website is controlled or operated from within [Insert Country/State]. We make no representation that the Website is appropriate or available for use in other jurisdictions. You are responsible for compliance with all applicable local laws when accessing the Website from any location.

22. Changes to the Terms

We may amend or update these Terms at any time. The updated Terms will be posted on this page with a revised “Last Updated” date. Your continued use of the Website after the effective date of any changes constitutes acceptance of the updated Terms.

23. Force Majeure

We shall not be liable for any delay or failure to perform resulting from causes beyond our reasonable control, including acts of God, natural disasters, war, terrorism, riots, labor conditions, governmental actions, internet or telecommunications failures, or power outages.

24. Dispute Resolution; Arbitration

Any dispute, claim, or controversy arising out of or relating to these Terms or the use of the Website shall first be attempted to be resolved through good faith negotiations. If unresolved, such disputes shall be submitted to binding arbitration under the rules of the American Arbitration Association (or equivalent body in the applicable jurisdiction). Judgment on the award rendered by the arbitrator(s) may be entered in any court of competent jurisdiction. Notwithstanding the foregoing, either party may seek injunctive relief in a court of competent jurisdiction.

25. Governing Law; Venue

These Terms are governed by and construed in accordance with the laws of [Insert Jurisdiction], without regard to its conflict-of-laws rules. Subject to Section 24, you agree to submit to the exclusive jurisdiction and venue of the courts located in [Insert Venue] for the resolution of any dispute.

26. Notices

We may provide notices by posting to the Website. If applicable law requires that you provide notice to us, you must do so using the contact methods identified on the Website. Notices are deemed given upon posting to the Website or, if by you, upon our actual receipt.

27. Assignment

You may not assign or transfer these Terms, in whole or in part, without our prior written consent. We may assign these Terms without restriction. Any attempted assignment in violation of this Section is void.

28. No Waiver; Severability; Interpretation

No waiver of any term will be deemed a further or continuing waiver of such term or any other term. If any provision of these Terms is held invalid or unenforceable, the remaining provisions shall remain in full force and effect. Headings are for convenience only and do not affect interpretation.

29. Entire Agreement; Survival

These Terms, together with the Privacy Policy (and any other policies expressly incorporated by reference), constitute the entire agreement between you and us regarding the Website and supersede all prior or contemporaneous understandings. Any provisions that by their nature should survive termination shall so survive.