Home
Back
BAC Equation:
| From: | To: |
Blood Alcohol Content (BAC) is the percentage of alcohol in a person's bloodstream. It is used as a measure of intoxication for legal and medical purposes, with legal limits typically set at 0.08% in many jurisdictions.
The calculator uses the Widmark formula:
Where:
Explanation: The formula estimates BAC based on the amount of alcohol consumed, body weight, and gender-based distribution factors that account for differences in body water content.
Details: BAC calculation is crucial for understanding impairment levels, legal compliance, and personal safety. Different BAC levels correspond to varying degrees of impairment and legal consequences.
Tips: Enter alcohol consumption in grams, weight in kilograms, and select gender. Note that this is an estimation and actual BAC can be affected by metabolism, food intake, and other factors.
Q1: What is the legal BAC limit for driving?
A: Most jurisdictions set the legal limit at 0.08%, but some have lower limits for commercial drivers or zero tolerance for underage drivers.
Q2: How does alcohol consumption affect BAC?
A: BAC increases with the amount of alcohol consumed and decreases over time as the body metabolizes alcohol at an average rate of 0.015% per hour.
Q3: Why are there different r factors for males and females?
A: Females typically have higher body fat percentage and lower water content, leading to higher BAC levels from the same amount of alcohol compared to males.
Q4: What factors can affect BAC accuracy?
A: Metabolism rate, food consumption, medication, tolerance, and individual biological differences can all affect actual BAC levels.
Q5: Is this calculator suitable for legal purposes?
A: This is an estimation tool only. For legal purposes, always rely on certified breathalyzer tests or blood tests conducted by authorized personnel.