Alcohol Content Calculator
Check Hand Sanitizer Recipes
Use this tool to confirm a recipe has an effective final alcohol content.
Hand sanitizers should contain a final alcohol concentration of 60% to 95% to be effective.
STEP 3 - VIEW RESULTS
Final Alcohol Concentration*
*Maximum possible concentration, does not account for alcohol evaporation during process.
HOW TO USE THIS CALCULATOR
- Enter alcohol details in green box
- Enter other ingredients in yellow box
- View results output box
Fractions must be entered as decimals:
- 1/4 = 0.25
- 1/3 = 0.33
- 1/2 = 0.5
- 2/3 = 0.67
- 3/4 = 0.75
Tips from coronavirus.gov
- To be effective against killing some types of germs, hand sanitizers need to have a strength of at least 60% alcohol and be used when hands are not visibly dirty or greasy.
- Do not rely on “Do It Yourself” or “DIY” recipes based solely on essential oils or formulated without correct compounding practices.
- Do not use hand sanitizer to disinfect frequently touched surfaces and objects. See CDC’s information for cleaning and sanitizing your home.
*** NOTICE ***
- This calculator is intended for educational and harm reduction purposes.
- This website does not endorse any recipes except ones approved by W.H.O., and even then only if prepared by someone experienced and with the correct ingredients.
- Only a commercially prepared hand sanitizer is guaranteed to be effective and safe.
- Alcohol evaporates during the process, and measurement errors are common even for those experienced at formulating.
- In a properly formulated product, the alcohol content is remeasured at the end.
- Pharmaceutical/cosmetic/food grades are generally safe. Use other grades of ingredients at your own risk.
- Make DIY recipes at your own risk.