In order to accurately calculate the effects of alcohol on the body, the following important data are required:

1. Weight (kg):: Body mass has a direct impact on the absorption of alcohol. Higher weight determines a slower effect of alcohol on the body.
2. Gender: The bodies of women and men process alcohol differently. Alcohol is broken down more slowly in women's bodies due to a lower amount of enzymes that break down alcohol.
3. Amount of alcohol consumed (ml): It is necessary to indicate the exact volume of the alcoholic drink consumed in milliliters.
4. Alcoholic strength (%): This indicator shows the concentration of ethanol in the drink. It is an important factor in determining the total amount of pure alcohol consumed.
5. The time of the first alcoholic drink (optional): If you do not provide the first-drink time, the calculator presents sobriety relative to the elapsed time (hours passed) since the start of drinking, comparing levels by hours rather than mapping them to specific times of day.

These data are essential for accurately calculating the effects of alcohol on the body and assessing its impact on different individuals.

For drivers 21 years or older:

• It is illegal to drive with a blood alcohol concentration (BAC) of 0.08% or higher nationwide.
• Most provinces and territories also impose penalties for BACs as low as 0.05%.

For drivers under 21 years old:

• Zero tolerance in most provinces and territories (BAC must be 0.00%).

1. Fines
   • Minimum federal fine: $1,000 for a first offense.
   • Higher fines for repeat or aggravated offenses (no legal limit, but can reach several thousand dollars).
2. License Suspension
   • First offense: Minimum 1-year suspension (length varies by province and severity).
   • Repeat offenses: Longer suspensions, including permanent revocation in severe cases.
3. Jail Time
   • Possible for first offenses (up to 10 years for indictable offenses).
   • Mandatory jail time for repeat offenders or injury/death cases.
4. Community Service
   • May be required as part of sentencing, depending on province and case.
5. Mandatory Education or Treatment Programs
   • Required before license reinstatement in many provinces and territories.
6. Ignition Interlock Devices (IID)
   • Frequently required for reinstatement, especially for repeat or high-BAC offenses.
   • Can be mandatory even after a first offense in some provinces.

• Limit your alcohol consumption – follow the “one drink per hour” rule.
• Consume alcohol with meals to slow down its absorption.
• Drink a glass of water after each alcoholic drink.
• Do not drive after consuming even a small amount of alcohol.

Source: World Health Organization (WHO).