Terms of Service

Acceptance of Terms

By accessing and using Voltage Drop Calculator ("the Website," "this Website," or "our Website"), you acknowledge that you have read, understood, and agree to be bound by these Terms of Service ("Terms"). If you do not agree to these Terms, please do not use this Website.

These Terms apply to all visitors, users, and others who access or use the Website. Your continued use of the Website following the posting of any changes to these Terms constitutes acceptance of those changes.

Description of Service

Voltage Drop Calculator provides free online calculator tools for estimating voltage drop in electrical circuits. The Website offers:

• Voltage drop calculations for DC, single-phase AC, and three-phase AC circuits
• Wire sizing recommendations based on calculated voltage drop
• Educational articles about electrical principles and the National Electrical Code (NEC)
• The ability to share calculation results via URL parameters

All calculator features are provided free of charge. No account registration is required to use the calculator. The Website is accessible via standard web browsers on desktop and mobile devices.

Disclaimer of Warranties

The calculations provided by this Website are estimates for informational and educational purposes only. The Website and its content are provided "as is" and "as available" without any warranties of any kind, either express or implied.

Specifically, we make no warranties or representations regarding:

• The accuracy, reliability, or completeness of any calculations or results
• The suitability of the calculations for any particular purpose or application
• The availability or uninterrupted operation of the Website
• The absence of errors, bugs, or viruses

This Website does not provide professional, medical, financial, legal, or engineering advice. The calculator is a tool for preliminary estimates and educational purposes. Calculation results should always be verified by qualified professionals before being used for any important decisions, electrical installations, or safety-critical applications.

Electrical work can be dangerous and is regulated by law. Always consult a licensed electrician or electrical engineer for actual electrical installations. All electrical work must comply with the National Electrical Code (NEC), local amendments, and permitting requirements in your jurisdiction.

Limitation of Liability

To the fullest extent permitted by applicable law, Voltage Drop Calculator, its operators, affiliates, and contributors shall not be liable for any direct, indirect, incidental, special, consequential, or punitive damages arising out of or relating to:

• Your use of or inability to use the Website or its calculators
• Any decisions, actions, or outcomes based on calculator results
• Any errors or omissions in the calculations or content
• Any property damage, personal injury, or other harm resulting from reliance on the Website
• Any unauthorized access to or use of our servers or any personal information stored therein
• Any interruption or cessation of transmission to or from the Website

You use this Website and its calculations entirely at your own risk. You are solely responsible for verifying all calculations and ensuring that any electrical work you perform or commission complies with all applicable codes, regulations, and safety standards.

Accuracy

We strive to provide accurate calculations based on established electrical engineering formulas and methodologies. Our voltage drop calculations use wire resistance values from the National Electrical Code (NEC) Chapter 9, Table 8, which represents industry-standard reference data.

However, we do not guarantee the accuracy of any results. Calculated values are theoretical estimates based on standard conditions (75°C conductor temperature). Actual voltage drop in real-world installations may differ due to:

• Temperature variations affecting conductor resistance
• Conductor quality and manufacturing tolerances
• Connection resistance at terminals, splices, and junction points
• Conduit type and installation configuration
• Ambient conditions and load characteristics

The formulas and reference data used in our calculations are documented on the Website for transparency. Users are encouraged to review this documentation and verify that it meets their requirements.

Permitted Use

You are granted a limited, non-exclusive, non-transferable license to access and use the Website subject to these Terms. Permitted uses include:

• Personal use – You may use the calculator for personal, educational, and non-commercial purposes without restriction.
• Professional reference – Electricians, engineers, and other professionals may use the calculator as a preliminary reference tool, subject to the disclaimers above.
• Linking – You may link to our Website or share URLs to specific calculations. We appreciate attribution but do not require it for simple links.

The following uses are prohibited:

• Scraping or automated access – You may not use bots, scrapers, or automated tools to access the Website or extract data.
• Embedding without permission – You may not embed, iframe, or otherwise incorporate the calculator into your own website or application without our prior written permission.
• Copying substantial content – You may not reproduce, distribute, or republish substantial portions of the Website's content, articles, or code.
• Commercial redistribution – You may not sell, license, or commercially distribute the calculator or its outputs.
• Misrepresentation – You may not present the calculator as your own work or imply any official endorsement or affiliation.

Intellectual Property

The Website's design, layout, graphics, user interface, and original content are protected by copyright and other intellectual property laws. This includes but is not limited to:

• The Website's visual design and branding
• Original articles, explanations, and documentation
• The calculator's user interface and functionality
• Source code and software

The mathematical formulas used for voltage drop calculations (such as Ohm's Law and standard voltage drop equations) are public domain and are not claimed as proprietary. The NEC wire resistance data is derived from publicly available standards.

If you believe any content on this Website infringes your intellectual property rights, please contact us with details of the alleged infringement.

External Links

The Website may contain links to external websites and resources for your convenience and reference. These links do not signify endorsement of the linked content. We are not responsible for:

• The availability or accuracy of external websites
• The content, products, or services offered by third parties
• Any damages or losses caused by your use of external websites

We encourage you to review the terms of service and privacy policies of any third-party websites you visit.

Modifications to Service and Terms

We reserve the right to modify, suspend, or discontinue any aspect of the Website at any time without prior notice. This includes the right to:

• Add, modify, or remove calculator features
• Update formulas or reference data
• Change the Website's design or functionality
• Restrict access to certain features or the entire Website

We also reserve the right to update these Terms of Service at any time. When we make changes, we will update the "Last Updated" date at the top of this page. Your continued use of the Website after any modifications constitutes acceptance of the updated Terms.

Termination

We may restrict or terminate your access to the Website at any time, without notice, for any reason, including but not limited to:

• Violation of these Terms of Service
• Engaging in prohibited uses as described above
• Conduct that we determine to be harmful to the Website or other users

Upon termination, your right to use the Website will immediately cease. All provisions of these Terms that by their nature should survive termination shall survive, including intellectual property provisions, disclaimers, and limitations of liability.

Severability

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

Entire Agreement

These Terms of Service, together with our Privacy Policy, constitute the entire agreement between you and Voltage Drop Calculator regarding your use of the Website and supersede any prior agreements or understandings.

Contact Us

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

Email: info@voltagedropcalculator.org

You can also visit our contact page for more ways to reach us.

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