Advanced ETG Calculator (100ng & 500ng)

Estimate how long Ethyl Glucuronide (ETG) stays in your system based on your drinking level, body weight, and test cutoff.



📊 What This Calculator Does

This advanced ETG calculator estimates alcohol detection time based on the 100ng and 500ng cutoffs. The 100ng cutoff detects alcohol use for a longer time compared to 500ng, which is the standard for most ETG urine tests.

Typical ETG Detection Chart

Drinking Level100ng Cutoff500ng Cutoff
1–2 Drinks (Light)24–36 hrs12–24 hrs
3–5 Drinks (Moderate)36–60 hrs24–36 hrs
6+ Drinks (Heavy)60–80 hrs36–60 hrs

⚠️ Disclaimer

This ETG calculator provides estimated detection windows based on average data. Actual ETG levels vary by age, health, and hydration. This tool is for educational use only — not for legal or clinical decisions.


Try our main Free ETG Calculator for full features.

What Is an Advanced ETG Calculator?

An Advanced ETG Calculator helps estimate how long ethyl glucuronide (ETG) remains detectable in urine after drinking alcohol. ETG is a direct byproduct of ethanol metabolism, and it can reveal alcohol consumption for up to 80 hours or more depending on several factors like quantity, metabolism, and hydration.

This tool is designed for individuals, probation officers, and recovery professionals who need a realistic prediction of ETG detection times using the 100 ng/mL and 500 ng/mL cutoff levels.

How the ETG Calculator Works

Our ETG calculator uses scientific formulas that consider:

  • The number of drinks consumed
  • The time since your last drink
  • Your metabolic rate (average or fast)
  • The cutoff level (100 ng/mL or 500 ng/mL)

After entering these values, the tool instantly estimates how long ETG may stay detectable in your urine.
👉 Note: This calculator gives an estimated range actual results may vary based on body composition, hydration, and test sensitivity.

Understanding 100 ng vs 500 ng Cutoffs

ETG tests are available at different sensitivity levels:

  • 100 ng/mL (Very Sensitive): Detects even light drinking or incidental exposure for up to 80 hours.
  • 500 ng/mL (Standard): Used in many probation and workplace programs. Detects moderate to heavy drinking for up to 60 hours.

If your test uses the 100 ng cutoff, ETG remains detectable longer. The 500 ng cutoff allows for slightly shorter detection windows.

Example Calculation

DrinksHours Since Last DrinkCutoffEstimated Detection
3 beers24 hours500 ngPossibly detectable
3 beers24 hours100 ngLikely detectable
5 drinks48 hours500 ngMay still show ETG

These are rough estimates use the calculator above for personalized results.

Why Use Our ETG Calculator?

  • Fast & free online calculation
  • Supports 100 ng and 500 ng cutoffs
  • Based on real ETG metabolism data
  • Works on all devices
  • Helpful for probation, treatment, and recovery planning

This tool can help you understand your ETG elimination timeline so you can make informed, responsible choices.

Tips to Support ETG Elimination

While you cannot “cheat” an ETG test, healthy habits can support your body’s natural detox:

  • Stay hydrated with water and electrolytes
  • Get enough sleep
  • Eat balanced meals
  • Avoid additional alcohol or products containing ethanol (mouthwash, sanitizer)

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Disclaimer

This ETG Calculator provides educational estimates only. Actual test results depend on many individual factors. For medical or legal concerns, consult a healthcare or testing professional.