Note: The data on the charts is indicative of only one hour of alcohol consumption. Consuming multiple drinks per hour over a period of more than one hour would render a person’s Blood Alcohol Content significantly higher than the data listed on the chart for one hour of consumption.
Ability to track moving objects and do tasks requiring divided attention may suffer.
2 to 3
1 to 2
Thought, judgment and restraint more lax. Steering errors increase. Vision impaired.
3 to 4
2 to 4
Legal limit in most states. Drivers are 3 to 4 times more likely to crash than a sober driver. Movements are clumsy. Reaction time slows more.
3 to 5
2 to 5
Drivers are 6 times more likely to crash. Movements are clumsy. Reaction time slows even more.
4 to 7
3 to 7
Crashing is 25 times more likely. Reaction time increasingly affected especially in divided tasks. Field of vision narrows.
One drink = 5 oz. glass of 12% wine, or 12 oz. glass of 5% beer, or 1.5 oz. 80 proof spirits, or 0.8 oz. 151 proof spirits
Figures contained in the charts are averages, BAC and effects of alcohol on individuals vary widely.