ETG Calculator | Estimate ETG Detection Time

ETG Calculator

Enter your values to estimate ETG level & detection time.

ETG Detection Time Chart

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Starting ETG
Detection Hours
Below Cutoff In

ETG Calculator Online | Free ETG Urine Test Calculator

Estimate your ETG (Ethyl Glucuronide) levels in urine and understand your alcohol detection window with our free online ETG Calculator. Designed for educational purposes, this tool helps you calculate ETG levels based on the number of drinks, drink size, body weight, gender, and hours since your last drink.

Whether you are monitoring sobriety, planning alcohol abstinence, or preparing for a urine alcohol test, this realistic ETG calculator provides an informative estimate of your current ETG concentration.

How the ETG Calculator Works

Our ETG calculator online works by analyzing your drinking data and estimating your urine ETG concentration. The tool uses the following steps:

  • Converts standard drinks into grams of alcohol.
  • Models alcohol absorption during drinking.
  • Applies average elimination rates to predict ETG excretion.
  • Estimates when ETG levels fall below common cutoff thresholds.

The results include:

  • Estimated ETG concentration in urine.
  • Approximate time until ETG falls below cutoff levels (100, 200, 500 ng/mL).
  • Predicted ETG levels at cutoff times.

Note: Results are estimates. Individual metabolism, hydration, and lab methods can vary.

ETG Detection Window

Different ETG cutoff levels correspond to detection windows for light, moderate, and heavy drinking. The table below shows approximate detection times based on drinks consumed and cutoff levels:

Cutoff LevelLight Drinking (1–2 drinks)Moderate Drinking (3–6 drinks)Heavy Drinking (7+ drinks)
100 ng/mL24–48 hrs48–100 hrs72–130 hrs
200 ng/mL18–36 hrs36–80 hrs48–100 hrs
500 ng/mL12–24 hrs24–48 hrs48–72 hrs

This ETG test calculator table helps visualize detection times and plan accordingly.

Factors Affecting ETG Levels

Several factors influence ETG concentrations in your urine:

  • Amount and frequency of alcohol consumption.
  • Body weight and gender.
  • Hydration levels and fluid intake.
  • Metabolism and liver function.
  • Type of alcoholic drinks consumed.
  • Individual differences in ETG half-life.

Understanding these factors improves the accuracy of your ETG level calculations and can help you interpret results realistically.

Why Use Our ETG Calculator

Our free ETG urine test calculator is designed for practical and educational use:

  • Estimate your ETG levels before testing.
  • Understand detection windows for different drinking patterns.
  • Monitor sobriety or plan abstinence periods.
  • Gain insights into how alcohol is metabolized and cleared.

By using this tool, you get a realistic view of your urine ETG levels without relying solely on lab testing.

ETG vs PEth Testing

It’s important to know the difference between short-term and long-term alcohol monitoring:

  • ETG (Ethyl Glucuronide): Detects recent alcohol consumption in urine, up to 3–5 days.
  • PEth (Phosphatidylethanol): Detects long-term alcohol consumption in blood, up to 2–4 weeks.

Use the ETG Calculator for short-term detection and the PEth Calculator for long-term monitoring. Try our PEth Calculator to understand cumulative alcohol intake.

How to Calculate ETG Levels

Calculating ETG levels involves:

  1. Entering the number of drinks consumed.
  2. Selecting drink size (standard 14 g alcohol).
  3. Adding body weight and gender.
  4. Entering hours since last drink.

The calculator then generates an estimated ETG concentration, elimination timeline, and detection probability.

FAQ | ETG Test Calculator

It depends on your number of drinks, metabolism, and the cutoff used. Light drinkers may test negative, while heavy drinkers may still be above the threshold.

ETG (Ethyl Glucuronide) is a biomarker of alcohol consumption that remains detectable in urine long after alcohol leaves your bloodstream.

Yes, it provides estimates based on published research and average elimination rates, but individual metabolism varies.

Common cutoffs are 100 ng/mL, 200 ng/mL, and 500 ng/mL, depending on testing programs and sensitivity.

Yes, products like hand sanitizers, mouthwash, and some medications may trigger positive ETG results.

Disclaimer

This ETG Calculator is for educational purposes only. Individual metabolism varies, and laboratory confirmation is required for medical, legal, or probation decisions. Do not use this tool for legal actions without professional guidance.

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