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Alcohol Dilution Calculator

Use this to calculate how much water to add to distilled spirits to reach your desired bottling strength.

Formula
Water to Add = Volume × ((Current % ÷ Target %) - 1)
Water to add
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Final volume (approx)
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Note: Mixing alcohol and water can cause slight volume contraction - actual final volume may be a bit lower.

Common Questions

How do I dilute alcohol to a specific ABV?

Add water to your spirit until it reaches your desired strength. Using a dilution calculator ensures you add the correct amount of water for accurate and consistent results.


Do I add water to alcohol or alcohol to water?

Always add water to alcohol. This improves mixing and reduces the risk of cloudiness or flavour disruption.


Why did my spirit turn cloudy after dilution?

Cloudiness can occur due to mineral-heavy water, essential oils in flavoured spirits, or diluting too quickly. Try using filtered or distilled water and dilute gradually.


What is the ideal ABV for drinking spirits?

Most spirits are bottled between 37% and 45% ABV. Vodka and neutral spirits are commonly 40%, while whisky, rum, and gin may be bottled slightly higher. Liqueurs are typically mixed between 15% and 30% ABV


Why does alcohol warm up when water is added?

Mixing alcohol and water creates a mild heat reaction. This is normal and harmless.

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