Our purpose
People searching for an EtG calculator often encounter confident countdowns and pass/fail promises. The published research does not support that level of individual precision. We built a private educational tool that shows ranges, compares cutoffs, names uncertainty, and links directly to primary sources.
Who creates the content?
Content is prepared by the EtG Calculator Pro editorial team using peer-reviewed research, public-health guidance, and transparent source notes. We do not currently claim independent clinician review. When a qualified reviewer is formally engaged, their name, credentials, scope, and review date will be published here and in relevant article metadata.
Our independence
We do not sell tests, accept laboratory referral fees, or alter educational conclusions for a product manufacturer. Calculator entries are processed locally in the browser.
What this site is not
It is not a medical device, diagnostic service, legal opinion, treatment recommendation, or guarantee of a future result. If a test has health, employment, court, or supervision consequences, consult the responsible professional or laboratory.
Read our editorial policy, calculator methodology, and corrections process.