ETG Urine Test Calculator

It's a solid estimate, not a guarantee. The formula is based on real medical research, but your actual results depend on your body — liver function, weight, hydration, even genetics. Think of it like a weather forecast: usually right, but not perfect. If you have an important test, always give yourself extra buffer time beyond what the calculator shows. For probation tests especially, I'd add 20-30% more waiting time.

That 80-hour number gets thrown around a lot, but it's misleading. Yes, in extreme cases — heavy binge drinking plus very sensitive lab equipment — ETG can be detected that long. But for normal drinking (2-4 drinks), you're looking at 24-48 hours max. The 80-hour thing is the worst-case scenario, not typical. Most standard tests use 500ng/mL cutoffs, which shortens the real-world window to about 24-36 hours for moderate drinking.

I know that's the internet advice, but here's the truth: water doesn't speed up how fast your liver processes ETG. What it does do is dilute your sample — which often gets flagged as 'dilute' at the lab. Then you get called back for another test, usually with more scrutiny. Some programs automatically count dilute samples as failures. The only thing that actually clears ETG is time.

Yes, one drink can be detected, but not for long. With a strict 100ng/mL test, a single beer might show for 12-20 hours. With the standard 500ng/mL cutoff, one drink is usually undetectable within 6-10 hours. So if you had one beer at dinner and your test is the next morning? You're probably fine for standard tests, but cutting it close for strict ones.

Breathalyzers measure if you're drunk right now — they check for alcohol in your breath and only work for about 12-24 hours after drinking. ETG tests are looking for evidence of past drinking, not current impairment. The test detects a metabolite your body made while processing alcohol, which sticks around much longer. That's why ETG is popular for probation and treatment programs — they want to know if you drank at all this week, not just if you're drunk today.

This one's actually real. Hand sanitizers, certain mouthwashes, some medications, even cooking wine or vanilla extract — they can all introduce alcohol into your system. Usually this produces low readings under 500ng/mL, which is why most programs use 500ng as the cutoff (it filters out 'incidental exposure'). But if you're on strict 100ng monitoring, you should avoid all alcohol-containing products. That includes some cold medicines and hand sanitizers. Check labels.