Password Entropy Calculator

Your details

How many characters your password contains.
characters
Adds 26 characters to the pool (a through z).
Adds 26 characters to the pool (A through Z).
Adds 10 characters to the pool (0 through 9).
Adds 32 symbols available on a standard US keyboard.
Online attacks are throttled by the server. Offline attacks run at hardware speed after a database breach. Distributed attacks use many GPUs in parallel.
EntropyStrong
71.5bits

Higher = harder to crack

Character pool62characters
Possible combinations3226266.8 quadrillion
Estimated crack time51.1 billion years
Strength ratingStrong
71.5 bits
Very Weak<28Weak28-36Fair36-60Strong60-80Very Strong80+

71.5 bits of entropy - strong password.

  • Your password is strong. It would take a long time even under a fast offline attack.
  • Adding special characters would expand your character pool and raise entropy further.
  • Entropy measures brute-force resistance only. Dictionary words and personal info reduce real-world strength even when entropy appears high.

Next stepPair this password with a password manager so you can use a unique one for every account.

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