Know your number
before the lab does.
Twenty-two tools reading alcohol’s full timeline — from the first drink in your blood, to the last trace in your urine three days later.
Urine detection
07 toolsEthyl glucuronide (ETG) — short-term evidence of drinking, readable for up to five days.
ETG Calculator
The main tool. Drinks, hours since last one, and a cutoff — instant detection estimate.
Advanced ETG Calculator
Pick a 100 ng/mL or 500 ng/mL cutoff and get a detection time by weight and gender.
Elimination Time Calculator
How long ETG takes to clear, with cutoff and metabolism options. Built for planning.
ETG Level per Drink
Estimate your ETG level from the number and size of drinks, body weight and gender.
100 ng/mL Calculator
The sensitive cutoff. Longest detection window — used where any trace matters.
200 ng/mL Calculator
The middle-ground cutoff, between the sensitive 100 ng/mL and the 500 ng/mL level.
500 ng/mL Calculator
The highest common cutoff. The shortest of the three detection windows.
Blood detection
03 toolsPhosphatidylethanol (PEth) — a slower biomarker, built up over weeks rather than hours.
PEth Level Calculator
Estimate PEth from your average weekly drinks and how many weeks you have been drinking.
PEth & ETG Calculator
Estimate PEth blood levels and read how they relate to ETG urine detection.
PEth Test Chart
What a 20, 50, 80 or 200 ng/mL result actually means, in plain terms.
Live & reference
03 toolsCurrent intoxication, and the background reading behind every calculator above.
BAC Calculator
Real-time blood alcohol estimate — what is active now, not what is left behind later.
Detection Time Guide
What an ETG calculator is, and how long alcohol stays detectable in urine.
ETG Detection Time Chart
Estimate how long ETG stays detectable in urine by number of drinks and test cutoff.
More ETG tools
09 toolsEstimators, charts and formula-based calculators for more specific questions.
ETG Estimator
Enter drinks and alcohol per drink to estimate your ETG level.
Detection Time Chart Tool
How long ETG stays detectable in urine, by drinks and test sensitivity.
ETG Level Estimator
See how ETG concentrations in urine decline over time after drinking.
Urine ETG Calculator
Track alcohol-related ETG in urine over time from your drinks and their strength.
ETG Reduction Calculator
Start from a current ETG level and chart how it falls over the hours ahead.
ETG Half-Life Calculator
Enter an estimated ETG half-life to see how long ETG stays detectable.
ETG Date & Time Calculator
Estimate when alcohol may leave your system from when you drank and the cutoff.
ETG Formula Calculator
A formula-based estimate from drinks, body weight in kg and hours since your last drink.
ETG Level Calculator
Estimated ETG, detectable hours and status from drinks, weight, gender and cutoff.
Built to be read, not just trusted.
Every calculator works from inputs you can see — drinks, weight, hours, cutoff — so an estimate is something you can check, not a black box you have to take on faith.
- 01Research-based modelsEstimates follow average ETG and PEth elimination rates, with the cutoff and drinking pattern you choose.
- 02Every common cutoff100, 200 and 500 ng/mL for urine; the 20, 50, 80 and 200 ng/mL reference levels for blood PEth.
- 03Mobile-friendly calculatorsBuilt to be usable on a phone in the waiting room, not just a desktop browser.
- 04For personal or professional useUsed for probation monitoring, workplace programs, recovery tracking, and personal awareness alike.
- 05Accuracy over reassuranceThese are estimates with visible uncertainty — not a tool designed to tell you what you want to hear.