Enter your Initial Alcohol Concentration, Initial Volume, and Target Alcohol Concentration into the Ethanol Dilution Calculator to find exactly how much Water to Add to hit your desired strength — plus your Final Volume, Dilution Ratio, and Pure Alcohol Volume for the full picture.
Water to Add
--
Final Volume
--
Dilution Ratio
--
Pure Alcohol Volume
--
Use the formula: Water needed = (Initial volume × Initial concentration / Target concentration) - Initial volume. This ensures the final mixture has your desired alcohol percentage.
Yes, you can dilute alcohol with distilled water. Always use distilled water to avoid introducing impurities that could affect taste or clarity of your final product.
To dilute 95% alcohol to 40%, you need to add approximately 1.375 parts water for every 1 part of 95% alcohol. For example, 1000mL of 95% alcohol requires 1375mL of water.
Yes, always add water to alcohol slowly while stirring, never add alcohol to water. This prevents heat generation and ensures proper mixing without creating hot spots.
Alcohol contraction occurs when alcohol and water mix, resulting in a slightly smaller final volume than expected. For precise work, the contraction is typically 2-3% and should be considered.
Yes, this calculator works for any alcohol type including isopropyl alcohol. The dilution principles are the same regardless of the alcohol type.
Dilution calculations are very accurate when using precise measurements. Use a graduated cylinder or scale for best results, and always measure at room temperature for consistency.
Theoretically, you can dilute to any concentration above 0%. However, very low concentrations require large amounts of water and may not be practical for most applications.