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Number of drinks: Enter how many drinks you consumed during the session. One standard drink equals 14g of pure alcohol.
Drink type: Select beer (5% ABV), wine (12% ABV), or spirits (40% ABV). The calculator adjusts the equivalent standard drinks automatically.
Hours since last drink: Enter how many hours ago you had your last drink.
Body weight: Enter your weight in pounds or kilograms.
Gender: Select male or female, which affects the Widmark factor used.

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