Widmark + Burn Rate
Uses Widmark formula with metabolism rate 0.015 BAC per hour plus stomach absorption adjustment.
Estimate blood alcohol content with Widmark math, legal limit timeline, and sobriety countdown. Never drive impaired.
Uses Widmark formula with metabolism rate 0.015 BAC per hour plus stomach absorption adjustment.
Enter 5% for beer, 12% wine, 40% spirits, or average a mixed night.
Faster absorption means higher peak BAC. Choose the food option that matches reality.
Shows how long until you’re below 0.08/0.05/0.00 assuming no additional drinks.
Get Home Safe
Rideshare credits and designated driver services in your city.
A 160 lb man reaches approximately 0.08% BAC after 4 standard drinks in 2 hours. Legal driving limit in all US states is 0.08%. Use our calculator before driving.
One standard drink = 14g of pure alcohol = 12 oz regular beer (5%) = 5 oz wine (12%) = 1.5 oz spirits (40%). Our BAC calculator uses these measurements.
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