Spiritulator is a useful tool for those who want to dilute their alcohol samples. The app calculates the amount of water required to dilute a known volume and percentage of alcohol to the desired final percentage. The user can enter the volume of the sample to be diluted, the known alcohol percentage, and the desired final alcohol percentage. The app provides the amount of water to add in gallons or liters.

The calculations are based on density values at 20 degrees Celsius from the International Alcoholometric Tables - OIML. Although the results are approximate, they are significantly more accurate than standard dilution equations. It is important to note that care should be taken to prevent over-dilution of your spirits.

Overall, Spiritulator is a helpful app for those who need to dilute their alcohol samples. It is easy to use and provides accurate results.