Password Strength Calculator
Check how strong your password could be based on length and character types. See estimated time to crack.
Inputs
Results
Strength
Strong
Time to Crack
755 thousand years
Entropy78.7 bits
Character Set Size94
Possible Combinations4.76e+23
How to Use This Calculator
- Enter the Password Length — shorter passwords are exponentially weaker.
- Toggle the character types your password uses: Lowercase (a–z), Uppercase (A–Z), Numbers (0–9), and Symbols (!@#$).
- Review the Strength rating (Very Weak to Excellent) and Entropy in bits — 60+ bits is considered strong.
- Check Time to Crack assuming a 10 billion guess/second offline attack to assess real-world risk.
- Use Possible Combinations to understand the search space an attacker must cover.
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