Webwith our etg calculator, you can get an estimated reading of how much etg remains in your system based on a few simple inputs like: Webour etg calculator provides an estimate of how long alcohol will stay in your system based on the number of drinks you’ve had, your body weight, and the time of your last. If you have come into contact with alcohol, you can calculate your etg levels.

Webetg tests have different cutoff values from low to high depending on the level of alcohol exposure.