The pH of vinegar varies depending on the type of vinegar. Vinegar is acidic, and its pH level lets you know how acidic or basic it is. The pH scale ranges from 0 to 14, with 7 being neutral. Substances with pH levels under 7 are categorized as acidic, and vinegar typically has a pH of around 2 to 3. White distilled vinegar, which is the kind best suited for household cleaning, typically has a pH of around 2.5. If you dilute vinegar with water, its acidity lessens, making its pH level rise. However, adding water to vinegar can never turn vinegar into an alkaline, because water has a neutral pH.