What is blood alcohol content (BAC)?

BAC is the percentage of alcohol in your bloodstream, expressed as grams of alcohol per 100 mL of blood. It rises with each drink and falls as your liver metabolizes alcohol over time, and it is the standard measure used in legal driving limits.

How does the BAC calculator estimate my level?

It uses the Widmark formula, factoring in your weight, sex, number of standard drinks, and time elapsed. Alcohol is removed at roughly 0.015% BAC per hour, so the tool also estimates when you would return to zero. Results are estimates only.

Is the calculated BAC accurate enough to drive?

No. Estimates can differ significantly from a breathalyzer due to food, hydration, medications, and individual metabolism. In many places the legal driving limit is 0.08%, but impairment starts well below that. Never use a calculator to decide whether you are safe to drive.

Calculadora de alcoholemia (BAC)

Estima tu BAC con la fórmula de Widmark

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Sexo

Peso (kg)

Bebidas estándar

1 bebida estándar ≈ 14 g de alcohol puro

Horas desde la primera bebida

tiempo transcurrido durante y después de beber

Calculadora de alcoholemia (BAC)

Esta calculadora usa la clásica fórmula de Widmark para estimar la alcoholemia (BAC) a partir de tu peso corporal, sexo, número de bebidas estándar y las horas desde tu primera bebida, teniendo en cuenta el alcohol que tu cuerpo ya ha metabolizado (alrededor del 0.015% por hora). También estima cuánto falta para que estés sobrio. La alcoholemia real varía según la comida, la hidratación, los medicamentos y el metabolismo individual, así que toma el resultado solo como una guía aproximada y nunca conduzcas después de beber.

Solo una estimación aproximada (fórmula de Widmark). Muchos factores cambian la alcoholemia real. Nunca conduzcas después de beber: esto no es asesoramiento legal ni médico.

Preguntas frecuentes

What is blood alcohol content (BAC)?: BAC is the percentage of alcohol in your bloodstream, expressed as grams of alcohol per 100 mL of blood. It rises with each drink and falls as your liver metabolizes alcohol over time, and it is the standard measure used in legal driving limits.
How does the BAC calculator estimate my level?: It uses the Widmark formula, factoring in your weight, sex, number of standard drinks, and time elapsed. Alcohol is removed at roughly 0.015% BAC per hour, so the tool also estimates when you would return to zero. Results are estimates only.
Is the calculated BAC accurate enough to drive?: No. Estimates can differ significantly from a breathalyzer due to food, hydration, medications, and individual metabolism. In many places the legal driving limit is 0.08%, but impairment starts well below that. Never use a calculator to decide whether you are safe to drive.

Calculadora de alcoholemia (BAC)

Preguntas frecuentes

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