About Our BAC Calculator

Our Blood Alcohol Content (BAC) calculator is designed as an educational tool to help users understand how alcohol affects the body and the factors that influence blood alcohol concentration. This calculator is not intended to determine if someone is safe to drive or make legal decisions.

BAC is calculated using the Widmark formula, which considers:
Several variables influence how alcohol affects your body:

The legal BAC limit for driving is 0.08% in most states, but impairment can occur at much lower levels. Commercial drivers have a 0.04% limit. Remember that BAC calculators provide estimates only and should never be used to determine if you are safe to drive.

This calculator provides estimates based on standard formulas. Actual BAC can vary due to individual factors not accounted for in the calculation. For precise measurement, use a certified breathalyzer device or blood test administered by professionals.