About EtG Calculator - Our Mission & Values

Our Mission

EtG Calculator was created to provide a free, accessible, and scientifically grounded tool for understanding alcohol detection times. We believe that everyone facing alcohol testing—whether for legal, professional, or personal reasons—deserves access to accurate information to make informed decisions.

Our mission is to demystify EtG (Ethyl Glucuronide) testing by translating complex scientific research into practical, easy-to-understand tools and educational content. We aim to reduce anxiety and uncertainty by providing realistic estimates based on peer-reviewed metabolic models.

What We Offer

EtG Calculator provides a comprehensive suite of tools and resources to help you understand alcohol detection times:

Free Online Calculator: Estimate EtG detection times based on drinks consumed, body weight, gender, and test cutoff levels
Interactive Detection Time Chart: Visualize how EtG levels change over time with customizable scenarios
Educational Content: In-depth guides on calculation formulas, standard drink conversions, and detection time factors
Multiple Cutoff Support: Calculate for different testing thresholds (100, 250, 500, 1000 ng/mL)
Science-Based Approach: All calculations based on published research and validated metabolic models
Privacy-First Design: All calculations performed locally in your browser—no data uploaded to servers

Why Choose Us

🔬 Scientific Accuracy

Our calculations are based on peer-reviewed research on EtG metabolism, including studies on elimination rates, peak concentration timing, and individual variability factors.

🔒 Complete Privacy

All calculations happen in your browser using JavaScript. We never upload your drinking data to our servers. Your calculation history is stored locally on your device only.

💯 Always Free

Unlike some competitors, we never charge for calculator access. All features are free with no hidden paywalls, trial limits, or premium tiers.

📊 Transparent Methodology

We openly explain our calculation formulas, assumptions, and limitations. You can review the scientific basis for our estimates in our detailed guides.

🎯 Honest Communication

We clearly state that our tool provides estimates, not guarantees. We acknowledge individual variability and encourage users to build in safety margins.

Who We Serve

EtG Calculator is designed for individuals who need to understand alcohol detection times in various contexts:

Legal Monitoring: Individuals on probation, parole, or court-ordered alcohol monitoring programs
Professional Testing: Employees subject to workplace alcohol testing policies
Recovery Programs: People in addiction recovery programs with regular testing requirements
Personal Planning: Anyone who wants to understand how long alcohol metabolites remain detectable
Educational Purposes: Students, researchers, and professionals learning about EtG testing

Our Values

Transparency

We openly share our methodology, limitations, and scientific sources. We never make exaggerated claims about accuracy or guaranteed results.

User Privacy

We respect your privacy and never collect, store, or share your personal drinking data. Your information stays on your device.

Scientific Integrity

We base our tools on validated research and update our models when new scientific evidence emerges. We cite our sources and explain our assumptions.

Accessibility

We believe critical information should be free and accessible to everyone, regardless of financial means. We maintain a clean, ad-light experience focused on usability.

Technical Excellence

Our calculator uses a sophisticated metabolic model that accounts for:

Peak EtG Timing: EtG levels typically peak 2-3 hours after drinking stops
Elimination Rates: Average elimination of 100-200 ng/mL per hour with individual variation
Body Weight & Gender: Adjusted calculations based on body composition and metabolic differences
Multiple Cutoffs: Support for 100, 250, 500, and 1000 ng/mL testing thresholds
Conservative Estimates: Built-in safety margins to account for slower-than-average metabolism

All calculations are performed client-side using modern JavaScript, ensuring fast results and complete privacy.

Contact Us

We welcome your feedback, questions, and suggestions for improving EtG Calculator.

Email: contact@etg-calculator.org
Response Time: We typically respond within 2-3 business days
Feedback: We appreciate reports of bugs, calculation discrepancies, or content suggestions

Important Disclaimer

EtG Calculator is an educational tool providing estimates only. It is not a substitute for professional medical, legal, or addiction counseling advice. Actual EtG test results can vary significantly based on individual metabolism, testing methods, and other factors beyond our model's scope.

We strongly recommend building in extra safety time before scheduled tests and consulting with qualified professionals for personalized guidance. Never rely solely on calculator estimates for critical decisions.