Social drinking
Premium nightlife and shared table settings.
Real-time Widmark BAC Estimator
Premium BAC analytics for safer planning, sober timing, and driving-limit awareness.
Use real inputs, a live Widmark formula calculation, and legal threshold guidance to estimate your blood alcohol content with a polished, high-end interface.
Car safety
Drive-limit awareness and safety-first planning.
Step 1: Your Basic Details
Update your profile to refine the BAC estimate.
Sex
Weight
lbs
Step 2: Select Your Drinks
Quick choices, custom input, and brand search all update your BAC live.
Real-time updates
Beer
Light Beer (12 oz)
Servings2
Wine
Red Wine (5 oz)
Servings1
Spirits
Spirit Shot (1.5 oz)
Servings1
All-State BAC legal reference
Standard, zero-tolerance, and aggravated BAC thresholds vary by jurisdiction and circumstance. Always verify with current local law.
| State | Standard | Zero tolerance | Aggravated |
|---|---|---|---|
| Alabama | 0.08% | 0.02% | 0.15% |
| California | 0.08% | 0.01% | 0.15% |
| Florida | 0.08% | 0.02% | 0.15% |
| New York | 0.08% | 0.02% | 0.18% |
| Texas | 0.08% | 0.00% | 0.15% |
| Washington | 0.08% | 0.02% | 0.15% |
Professional disclaimer
This calculator is an educational estimate only. It does not guarantee legal compliance, fitness to drive, or medical safety. Alcohol affects everyone differently. If you have consumed any alcohol, do not drive until you are certain you are unimpaired and legally safe.
Standard Drink Guidelines
- • A standard drink is a reference measure, not a guarantee of identical impairment.
- • Common examples include 12 oz beer, 5 oz wine, or 1.5 oz distilled spirits.
- • Stronger servings, mixed drinks, and oversized pours can contain significantly more alcohol.
Alcohol Metabolism Explained
- • The liver metabolizes alcohol gradually over time, often around 0.015 BAC per hour.
- • Body size, biological sex, food intake, and drink pace all affect peak BAC.
- • BAC may continue to rise after the last drink if alcohol is still being absorbed.