BAC Calculator
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BAC Calculator
Estimate your blood alcohol content (BAC) level. This is an estimate only and should not be used to determine if you are safe to drive.
kg
drinks
hours
Estimated Blood Alcohol Content
0.000
Impairment Level—
Legal Limit (most states)0.08%
Time to Reach Zero BAC (approx)—
Warning: This is only an estimate. Actual BAC depends on many factors including metabolism, food intake, and individual variation. Do not drink and drive.
BAC Impairment Guide:
0.02-0.03%: Mild relaxation, slight mood enhancement
0.04-0.06%: Relaxation, lowered inhibition
0.07-0.09%: Impaired judgment, reduced coordination
0.10-0.12%: Significant impairment, slurred speech
0.13-0.15%: Gross motor impairment, risk of blackout
0.16-0.20%: Severe impairment, disorientation
0.25%+: Risk of alcohol poisoning, loss of consciousness
0.02-0.03%: Mild relaxation, slight mood enhancement
0.04-0.06%: Relaxation, lowered inhibition
0.07-0.09%: Impaired judgment, reduced coordination
0.10-0.12%: Significant impairment, slurred speech
0.13-0.15%: Gross motor impairment, risk of blackout
0.16-0.20%: Severe impairment, disorientation
0.25%+: Risk of alcohol poisoning, loss of consciousness