Password Strength/Entropy Calculator

Password Entropy Calculator #password

Insert the length of the password and select the format of the password.


  • Do NOT input your real password(s) here.
  • This calculator is NOT meant to provide you the best password to use. It is merely meant to be a guide to what should be a strong password.
  • Do NOT use this calculator as a a Password Generator. Please use a proper password generator.
  • If you would like to test how long it can take to crack your password using a variable number of processor cores try out the Time to Crack Calculator.