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Last Updated: September 21, 2025

Agreement to Terms

By accessing and using the Molecular Weight Calculator service (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 our Service.

⚠️ Important Disclaimer

NO WARRANTY OR ACCURACY GUARANTEE: We do not guarantee the accuracy, completeness, or reliability of any calculations provided by this Service. Results are provided "AS IS" without warranty of any kind. We shall not be liable for any errors, omissions, or inaccuracies in the calculations or any consequences arising from their use.

Description of Service

The Molecular Weight Calculator is a free online tool that calculates the molecular weight (molar mass) of chemical compounds based on user-provided chemical formulas. The Service uses IUPAC standard atomic weights for calculations.

User Responsibilities

When using our Service, you agree to:

Limitations of Liability

Calculation Accuracy

WE DO NOT TAKE RESPONSIBILITY for wrong, inaccurate, or erroneous calculation results. Users must independently verify all calculations before using them for:

  • Academic research or publications
  • Commercial or industrial applications
  • Medical or pharmaceutical purposes
  • Safety-critical applications
  • Any other important decisions

To the maximum extent permitted by law, we shall not be liable for:

Disclaimer of Warranties

The Service is provided "AS IS" and "AS AVAILABLE" without warranties of any kind, including but not limited to:

Intellectual Property

The Service, including its design, code, and content, is owned by us and is protected by intellectual property laws. You may not:

User Content

Chemical formulas you enter are:

Service Availability

We strive to maintain Service availability but do not guarantee:

Educational Use

This Service is intended for educational and informational purposes. For critical applications:

Modifications to Terms

We reserve the right to modify these Terms at any time. Changes will be effective immediately upon posting. Your continued use of the Service after changes constitutes acceptance of the new Terms.

Termination

We may terminate or suspend access to our Service immediately, without prior notice, for any reason, including breach of these Terms.

Governing Law

These Terms shall be governed by and construed in accordance with applicable laws. Any disputes shall be resolved in the appropriate jurisdiction.

Severability

If any provision of these Terms is found to be unenforceable, the remaining provisions shall remain in full force and effect.

🔬 For Scientific and Professional Use

IMPORTANT: This calculator is a convenience tool. For scientific research, academic publications, industrial applications, or any critical use, always verify results using peer-reviewed sources, professional software, or experimental methods. We cannot be held responsible for any consequences arising from the use of our calculations.

Contact Information

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

By using our Service, you acknowledge that you have read, understood, and agree to be bound by these Terms of Service.