1. What is Alcohol Unit Conversion?

Alcohol concentration can be measured in different units worldwide. The most common are grams per liter (g/L) and millimoles per liter (mmol/L). This calculator converts between these two units using the molecular weight of ethanol (46.07 g/mol).

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• 46.07 — Molecular weight of ethanol (g/mol)
• 1000 — Conversion factor from grams to milligrams

Explanation: The formula converts mass concentration (g/L) to molar concentration (mmol/L) using the molecular weight of ethanol.

3. Importance of Alcohol Concentration

Details: Accurate alcohol concentration measurement is crucial for medical diagnostics, forensic analysis, and research purposes. Different countries and fields may use different units.

4. Using the Calculator

Tips: Enter the alcohol concentration value, select the current unit (g/L or mmol/L), and click calculate. The converter works in both directions.

5. Frequently Asked Questions (FAQ)

Q1: Why is 46.07 used in the calculation?
A: This is the molecular weight of ethanol (C₂H₅OH), which is needed to convert between mass and molar concentrations.

Q2: What's the difference between g/L and mmol/L?
A: g/L measures mass concentration (weight of alcohol per volume), while mmol/L measures molar concentration (number of alcohol molecules per volume).

Q3: Which unit is more commonly used?
A: g/L is more common in clinical settings, while mmol/L is often used in research and some European countries.

Q4: Does this work for other alcohols?
A: No, this calculator is specific to ethanol. Other alcohols have different molecular weights.

Q5: How precise is this conversion?
A: The conversion is mathematically exact. Any variation would come from measurement errors in the original concentration.