Terms of Use

1. About the service

Unit Toolbox provides unit conversions, formula references, calculators, and formatting tools. A free account provides account preferences and optional saved calculation history. Creating an account does not require a payment card. You must be legally able to enter this agreement, or use the service with the authorization and supervision required by applicable law.

2. Your account

Provide accurate account details, keep your password confidential, and use only accounts you are authorized to access. You are responsible for activity you authorize through your account. Use a unique password and notify the operator if you believe your account has been compromised.

3. Permitted use and your content

Use the service lawfully. Do not attempt unauthorized access, disrupt the service, distribute malware, or use it to infringe another person's rights. Only enter information you are permitted to process and store. Avoid passwords, access tokens, personal information, confidential client files, or other sensitive material in calculators and JSON tools.

You retain your rights in the material you enter. You authorize the processing needed to perform your requested operation and, if you activate history, to save and display that history in your account. This permission does not transfer ownership of your material.

4. Engineering results and professional judgment

Results are provided for reference and may contain errors, rounding differences, incomplete assumptions, or unit mismatches. Independently verify inputs, units, assumptions, and outputs before relying on them. The service does not certify designs, establish regulatory compliance, or replace the review of a qualified professional. Read the Engineering Disclaimer for additional limitations.

5. Availability, warranties, and responsibility

The service is provided as available. We do not promise uninterrupted availability, error-free calculations, suitability for a particular project, or permanent storage. Keep independent copies of work you need to retain.

To the extent permitted by applicable law, we disclaim implied warranties and responsibility for indirect or consequential losses arising from reliance on the service. Nothing in these terms excludes liability that cannot lawfully be excluded, limits non-waivable consumer rights, or excuses obligations imposed by applicable privacy law.

6. Changes, suspension, and closure

Features may change or be discontinued. Access may be restricted where reasonably necessary to address abuse, security issues, or legal requirements. You can delete your account through Profile; deleting it also removes its saved history from the live application database. Turning history off stops new records and does not delete older records.

Material changes to these terms will be identified with a new version and communicated through the service as appropriate. Acceptance records identify the version accepted at signup; these terms do not claim that an existing user accepted a later version automatically.

7. Applicable rights and disputes

The laws and mandatory protections applicable to you continue to apply. These terms do not impose mandatory arbitration or remove a right to contact a regulator or bring a claim where the law permits. Contact the operator about a concern before escalating where practical.