Home
Back
Proof Calculation After Dilution:
| From: | To: |
Alcohol proof is a measure of the strength of an alcoholic beverage. In the United States, proof is defined as twice the percentage of alcohol by volume (ABV). For example, 40% ABV is 80 proof.
The calculator uses the proof calculation formula:
Where:
Explanation: The calculator first determines the new ABV after dilution (original ABV divided by dilution factor), then calculates proof by doubling this value.
Details: Understanding proof after dilution is crucial for bartenders, home brewers, and anyone mixing alcoholic beverages to maintain consistent alcohol strength in drinks.
Tips: Enter the original ABV percentage (typically 40% for spirits like vodka or whiskey) and the dilution factor (how many times you're diluting the original alcohol). For example, mixing 1 part alcohol with 2 parts water would be a dilution factor of 3.
Q1: Why is proof defined as twice ABV?
A: This definition dates back to the 18th century when alcohol content was tested by mixing it with gunpowder. If the mixture still burned, it was "proof" it contained sufficient alcohol.
Q2: What's the difference between proof and ABV?
A: ABV is the percentage of alcohol in the liquid, while proof is simply double that number in the US system. Some countries use different proof systems.
Q3: How does dilution affect alcohol content?
A: Dilution reduces the alcohol concentration proportionally. Adding equal parts water to 80 proof alcohol (1:1 dilution) makes it 40 proof.
Q4: What's a standard drink proof?
A: In the US, standard spirits are typically 80 proof (40% ABV), though some are higher (e.g., 100 proof is 50% ABV).
Q5: Does proof affect taste?
A: Yes, higher proof alcohol typically has a stronger "burn" and more intense flavor, while diluted alcohol is smoother.