Alcohol Calculator Brazil 🇧🇷

Estimate your blood alcohol level (BAC), track standard drinks consumed, and see exactly when you'll be sober enough to drive. Test your alcoolemia with our realistic breathalyzer simulator.

Do you fancy AI? Try our AI-powered BAC calculator.

Try AI Calculator Frequently Asked Questions

ℹ️ Your Information

CONTEXT
🌎 Country
Show results in
ABOUT YOU
Sex
Weight

Start of consumption (optional) Time of your first drink (optional)

🕒

🍹🍸🍺 Drinks

Drink {{index+1}} 🍷

🍺 🍷 🥃 🍺 🍹 Standard cocktail usually contains single shot of hard liquor. 🥂
{{ t.ml }} {{ qunits }} ({{ t.volume }}%)
{{ t.count }}

%

Results will appear here...
📈 Results

Current BAC

{{ initialSobriety }}{{ unitSign }}
Measured for Now

Legal limit

{{ countryLimit }}{{ unitSign }}
Based on Brazilian law

Elimination rate

{{ decayRateDisplay }}{{ unitSign }} / h
Assumed average

Standard drinks

{{ standardDrinks }}🍺
Approximately consumed

Pure Alcohol

{{ results.length > 0 ? results[0].pureAlcoholMl : '0' }} {{ qunits }}
Pure alcohol consumed
For your own safety, we recommend using a rate no higher than the average.
🟢 Status indicators
🔴 Above legal limit – do not drive.
🟡 Close to legal limit – driving not recommended.
🟢 Within legal limit, but stay alert when driving.
{{ afterLabel }} {{ $t('unit.' + units) }} Status
{{ result.time }} {{ result.drunkenness }} {{ result.statusLabel }}
Create a pop-up notification
📉 Sobriety variation over time
👮 Health impact and legal consequences
{{ item.title }}
Legal limit reached in: {{ legalLimitTimeLabel }} Sober in: {{ sobrietyTime }} Peak BAC: {{ peakBAC }}

💡 Tips: drink water, eat food, and avoid driving until you are below the legal limit and preferably completely sober.

To the top ⬆️

Warning‼️ Results are approximate only; make sure you are sober before driving.

About results ▼

📊 Current BAC

Your Current BAC shows your estimated blood alcohol concentration right now as a percentage. This number reflects how much alcohol is in your bloodstream and is used to assess impairment.

🚔 Legal limit

In the United States and Canada, the standard legal driving limit for fully licensed adults is 0.08 % BAC. Exceeding this can result in DUI/DWI penalties, including fines and license actions.

🧪 Elimination rate

This shows the assumed average rate your body metabolizes alcohol — typically ~0.015 % BAC per hour. It’s an estimate of how fast your BAC decreases over time.

🍺 Standard Drinks

The number of Standard Drinks represents the approximate number of typical servings you’ve consumed (e.g., one beer, glass of wine, or shot), based on local standards for drink size.

🧴 Pure Alcohol

This is the amount of pure alcohol (in ounces) your body has absorbed so far, giving you a measure of total alcohol consumed.

⏱ Time vs. Sobriety Table

The table lists how your BAC is expected to change with each hour passed — and when a Start time of drinking is provided, it aligns these estimates with the exact time of day you began drinking. For example, if you started at 6:00 PM, the column will show your projected BAC at 6:00 PM (Now), 7:00 PM (1h), 8:00 PM (2h), etc., so you can clearly see when your BAC is likely to cross legal and safer thresholds as the day progresses. Icons or status indicators show whether the level is safe for driving at those specific clock times, making it easier to plan your departure or rest period.

📈 Sobriety Over Time Graph

A visual line chart plotting your estimated BAC decline over hours. It helps you see when your BAC drops below legal and safer levels.

😵 How Alcohol Affects You

This reference table shows ranges of BAC and typical effects on your body and behaviour — from mild alertness changes to significant impairment at higher levels.

⏰ Legal limit reached in / Sober in / Peak BAC

These summaries give quick key estimates:

  • Legal limit reached in: the time until your BAC likely falls below the legal driving limit.

  • Sober in: total time until BAC reaches ~0.000 %.

  • Peak BAC: the highest BAC value recorded in the session.

Data used for calculations

To accurately calculate the effects of alcohol on the body, the following important data is required:

  1. Weight (kg): Body mass has a direct impact on alcohol absorption. Higher weight determines a slower effect of alcohol on the body.
  2. Sex: Women's and men's bodies process alcohol differently. Alcohol is metabolized more slowly in women's bodies due to lower amounts of enzymes responsible for breaking it down.
  3. Amount of alcohol consumed (ml): The exact volume of alcoholic beverage consumed in milliliters must be indicated.
  4. Alcohol content (%): This indicator shows the concentration of ethanol in the beverage. It is an important factor in determining the total amount of pure alcohol consumed.
  5. Time of first drink (optional): If you enter the time of your first drink (clock time), the calculations are anchored to the time of day and show how sobriety varies throughout the day — this allows you to see your estimated sobriety for the current moment. If you do not enter the time of first drink, the calculation is presented in relation to elapsed time (hours passed) since consumption began, comparing levels by hours instead of linking them to specific times of day.

This data is essential to accurately calculate the effects of alcohol on the body and assess its impact on different individuals.

Drunk driving in Brazil

In Brazil, the Brazilian Traffic Code adopts zero tolerance for alcohol consumption while driving:

  • Any blood alcohol concentration can be considered an offense, subject to fines and other penalties.

  • Once the presence of alcohol or signs of intoxication is confirmed, the driver can be fined even without reaching a specific alcohol content limit.

Common penalties in Brazil

  • Fines
    Amount: R$ 2,934.70, which can double in case of recurrence within 12 months.

  • License suspension
    The driver may have their license suspended for 12 months.

  • Imprisonment
    In cases of traffic crime (accident with victims, refusal to test, evident intoxication): detention from 6 months to 3 years.

  • Retraining course
    Mandatory to regain the right to drive after suspension.

  • Vehicle and license seizure
    When caught in the act, the vehicle can be impounded and the license seized.

Tips for drinking responsibly

  • Moderate your consumption – follow the "one drink per hour" rule.

  • Eat before and during alcohol consumption to reduce alcohol absorption.

  • Alternate with water – drink a glass of water between alcoholic drinks.

  • Never drive after consuming alcohol, even in small amounts.

Source: World Health Organization (WHO).

Frequently Asked Questions 15 FAQs

Read all

Articles 1 related articles

Read all