Peak BAC 0.092% at 10:45 PM (over limit)
Legal Driving Window 1:30 AM in 4h 30m (<0.08% limit)
Complete Zero BAC 5:15 AM 100% metabolized
Total Pure Ethanol 58.2 g approx. 4.15 standard drinks
24-Hour Blood Alcohol Concentration Kinetics Hover/scrub curve to inspect impairment
Actual BAC Counterfactual Legal Limit (0.08%)
Time: 10:45 PM | Estimated BAC: 0.092%
Legally Intoxicated (> 0.08%)
Noticeable motor deficit, slowed reaction times, impaired peripheral vision.
Do Not Drive — Peak Imparment Expected

Your estimated BAC reaches 0.092%, exceeding legal per se limits. Secure a designated driver or hail rideshare for departure.

Pharmacokinetics & Forensic Reference Notes

The Widmark Equation with Absorption Delay

Standard Widmark models assume instantaneous distribution. This simulator couples classical Widmark distribution volume (r = 0.68 for males, r = 0.55 for females) with first-order gastric absorption kinetics (ka adjusted for gastric food buffers) and constant zero-order hepatic elimination (average forensic rate β = 0.016% / hr).

Gastric Emptying & Pacing Counterfactuals

Alcohol consumed on an empty stomach empties rapidly through the pyloric sphincter into the duodenum where systemic absorption is almost immediate. Eating high-protein or fibrous food delays gastric clearance, smoothing peak BAC by up to 35% and extending time-to-peak.

Per Se Legal Limits & Degradation of Reflexes

While 0.08% is the non-commercial statutory per se threshold in most US jurisdictions, psychomotor impairment (divided attention, eye tracking, braking distance latency) begins at 0.02% to 0.04% BAC. True safe operating capacity requires full zero-concentration clearance.

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