EtG Alcohol / BAC Estimator
Result
EtG Alcohol / BAC Estimator The EtG / BAC Estimator uses the Widmark formula to estimate peak blood alcohol concentration from drinks, body weight, and sex, and gives a rough EtG urine detection window. For education only. — free online calculator.
Formula
- EtG Alcohol / BAC Estimator calculates its result from Hours, Grams Alcohol, Weight G, Rate (decimal). It uses the formula BAC% = (grams alcohol ÷ (weight_g × r)) × 100 − 0.015 × hours. Change any input to recalculate the result instantly. This is an informational calculation and is not medical advice.
- The main inputs are Hours, Grams Alcohol, Weight G, Rate. Enter them in the units and format shown in the calculator.
- Use the measurement units shown beside each field. The result is an estimate and should be interpreted in context.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: EtG Alcohol / BAC
- Hours: 2
- Grams Alcohol: 3
- Weight G: 4
- Rate: 0.05 decimal
Using Hours = 2, Grams Alcohol = 3, Weight G = 4, Rate (decimal) = 0.05, the calculated result is 1499.97.
Sample result: Calculating…
Frequently asked questions
What does the EtG Alcohol / BAC calculate?
EtG Alcohol / BAC Estimator The EtG / BAC Estimator uses the Widmark formula to estimate peak blood alcohol concentration from drinks, body weight, and sex, and gives a rough EtG urine detection window. For education only. — free online calculator.
Which values should I enter?
Enter Hours, Grams Alcohol, Weight G, Rate using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: BAC% = (grams alcohol ÷ (weight_g × r)) × 100 − 0.015 × hours.
Why might my result differ from another source?
Results can differ because measurement methods, rounding and assumptions vary. This calculator is an estimate and is not a medical diagnosis.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.