1. What Are Alcohol Units?

Alcohol units are a simple way to measure the amount of pure alcohol in a drink. One unit equals 10ml or 8g of pure alcohol, which is roughly what an average adult can process in one hour.

2. How Does the Calculator Work?

The calculator uses the standard alcohol units formula:

Where:

• \( volume_{ml} \) — Volume of drink in milliliters
• \( ABV \) — Alcohol by volume percentage
• 1000 — Conversion factor (1000ml pure alcohol = 1 unit)

Explanation: The formula calculates how many 10ml portions of pure alcohol are in a drink based on its total volume and alcohol percentage.

3. Importance of Tracking Alcohol Units

Details: Tracking alcohol units helps people stay within recommended limits for safer drinking. Most health organizations recommend no more than 14 units per week, spread over 3 or more days.

4. Using the Calculator

Tips: Enter the drink volume in milliliters and the ABV percentage (found on the drink label). All values must be valid (volume > 0, ABV between 0.1-100).

5. Frequently Asked Questions (FAQ)

Q1: What counts as a standard drink?
A: This varies by country. In the UK, one unit is 10ml pure alcohol. In the US, a standard drink contains about 14ml pure alcohol.

Q2: How does ABV relate to proof?
A: In the US, proof is twice the ABV (e.g., 40% ABV = 80 proof). In the UK, proof was historically defined differently but is now rarely used.

Q3: How accurate are these calculations?
A: They're mathematically precise for the given inputs, but actual alcohol absorption varies based on food intake, metabolism, and other factors.

Q4: Why track alcohol units?
A: Regular monitoring helps prevent excessive consumption and related health risks like liver disease, cancer, and heart problems.

Q5: How long does alcohol stay in your system?
A: The liver processes about one unit per hour, but this varies by individual. Alcohol can be detected in urine for 12-48 hours after drinking.