Quickly calculate the precise amounts of alcohol (ethanol or isopropyl), glycerol, hydrogen peroxide, and distilled water needed to make your own WHO-recommended hand sanitizer. Our Hand Sanitizer Calculator helps ensure effective protection against germs, including coronavirus (COVID-19), by providing accurate ingredient ratios for safe, homemade solutions.
Formula:
Our calculator uses the World Health Organization (WHO) recommended formulas for alcohol-based hand rubs, ensuring an effective concentration of either 80% ethanol or 75% isopropyl alcohol.
It precisely determines the required volumes of alcohol, glycerol (glycerine), hydrogen peroxide, and sterile distilled or boiled cold water based on your desired final volume.