ETG calculators are designed to give an estimate based on average alcohol elimination rates. After 48 hours, many people will test negative because ETG usually clears within 24–80 hours, depending on factors like metabolism, drinking amount, and body weight.

So while the calculator is fairly accurate, it cannot guarantee 100% results since every person’s body processes alcohol differently. 👉 You can check your specific case using the ETG Calculator for a better estimate.