Terms of Service
Last Updated: October 24, 2026 • Reference & Scientific Usage Agreement
1. Acceptance of Terms
By accessing or using convert-calculate (the "Service"), you agree to be bound by these Terms of Service. If you do not agree with any part of these terms, you must discontinue use of the platform.
2. Scientific & Educational Reference Disclaimer
The tools, equations, and unit conversion algorithms provided on convert-calculate are designed for research, engineering, educational, and laboratory reference purposes only.
Equations relating to clinical pharmacology, creatinine clearance (Cockcroft-Gault), animal dose extrapolation (HED), and chemotherapy dosing (Calvert Carboplatin AUC) are academic models derived from published peer-reviewed medical literature. They do not constitute medical advice, clinical diagnoses, or individualized treatment directives. Healthcare professionals and researchers must independently verify all dosing regimens, animal protocols, and calculations against standard institutional guidelines and official pharmacological prescribing information.
3. Metrological Standards & Calculation Accuracy
Our physical conversion factors are aligned with international metrological standards, including NIST Special Publication 811 and the BIPM SI Brochure (9th Edition). While rigorous automated unit testing suites verify calculation consistency, the Service is provided on an "as-is" and "as-available" basis without warranties of any kind.
4. Membership Tiers & Paid Access
Convert-calculate offers optional paid memberships (Plus and Pro tiers) providing features such as ad-free browsing, Custom Studio formula creation, and personalized offline Progressive Web App (PWA) workspaces.
- Access is activated immediately upon successful payment verification via Stripe.
- Purchases are associated with your authenticated Google account and stored in our secure Firestore user directory.
- For billing inquiries or support, please reach out via our designated administrative channels.
5. Intellectual Property
The source code, custom user interface design, mathematical solvers, and curated editorial articles on convert-calculate are protected by copyright, trademark, and international intellectual property laws. You may freely use the calculations for personal, scientific, and academic work. Automated scraping, bulk extraction, or unauthorized mirroring of our tools is prohibited.
6. Limitation of Liability
In no event shall convert-calculate, its contributors, or scientific reviewers be liable for any direct, indirect, incidental, consequential, or punitive damages arising out of your access to, use of, or inability to use the calculation tools or reference materials.