How Many Shots of Tequila to Get Drunk Based on BAC and Body Weight
The number of shots needed to reach a legally drunk blood alcohol concentration (BAC) of 0.08% varies by body weight, sex, and metabolism. According to the National Institute on Alcohol Abuse and Alcoholism (NIAAA), a standard drink in the United States contains about 14 grams of pure alcohol, which is roughly the amount in a 1.5-ounce shot of 80-proof tequila. A person weighing around 120 pounds may approach 0.08% BAC after about 2 to 3 standard drinks within an hour, while someone weighing 180 pounds may need 4 to 5 drinks under similar conditions. BAC rises as the liver processes alcohol at roughly one standard drink per hour, so consuming shots faster than this rate increases intoxication risk. The NIAAA provides detailed guidance on standard drink sizes and BAC estimation at https://www.niaaa.nih.gov/alcohol-health/overview-alcohol-consumption/standard-drink.
BAC calculators from public health agencies use formulas that factor in gender, weight, number of drinks, and time. For example, a 160-pound male consuming 4 shots of tequila over two hours may reach a BAC near 0.06% to 0.08%, while a 130-pound female consuming the same amount may reach 0.08% to 0.10%. These estimates assume no food intake and a typical elimination rate. The Substance Abuse and Mental Health Services Administration (SAMHSA) notes that individual tolerance, medications, and health conditions can shift these numbers significantly. For a BAC chart and calculator, see the NIAAA at https://www.niaaa.nih.gov/alcohol-health/overview-alcohol-consumption/standard-drink.
Standard Drink Sizes and Tequila Proof That Affect Intoxication Speed
Tequila sold in the United States is typically 80 proof (40% alcohol by volume), but brands vary. The Alcohol and Tobacco Tax and Trade Bureau (TTB) requires labels to state ABV, so checking the bottle confirms exact strength. Higher-proof tequilas, such as 100-proof (50% ABV) expressions, deliver more alcohol per ounce and can raise BAC faster. A 1.5-ounce shot of 80-proof tequila contains about 0.6 ounces of pure ethanol, while a 1.5-ounce shot of 100-proof tequila contains about 0.75 ounces of pure ethanol. The TTB sets labeling rules and standards of identity for distilled spirits at https://www.ttb.gov/standards/identity/standards-distilled-spirits.
Mixers, glass size, and pouring habits also change the effective dose. A shot glass marked for 1.5 ounces is standard in U.S. bars, but free-poured shots can be larger. The Dietary Guidelines for Americans define moderate drinking as up to one drink per day for women and up to two drinks per day for men, and these guidelines are based on the standard drink concept. The U.S. Department of Health and Human Services and the U.S. Department of Agriculture publish these guidelines at https://www.dietaryguidelines.gov/. Exceeding these limits in a short period increases the likelihood of reaching a BAC that impairs coordination and judgment.
Legal Limits, Impairment Thresholds, and Safety Guidance for Tequila Consumption
In all 50 U.S. states, the legal BAC limit for driving is 0.08% for adults 21 and older, per the National Highway Traffic Safety Administration (NHTSA). Commercial drivers face a 0.04% limit, and underage drivers are subject to zero-tolerance laws.