Utility
Password Strength
Entropy and time-to-crack estimate.
Result
72.1 bits
Strong
Length
11
Charset size
94
Time to crack (offline)
16.05 k yr
Strength
Strong
Download results
Quick summary
Estimate the entropy (bits) and time to crack a password against a fast offline attacker.
How to calculate password strength manually
- Entropy = length · log₂(charset).
- Time = 2^entropy / 10¹⁰ guesses-per-second.
Estimate the entropy (bits) and time to crack a password against a fast offline attacker.
How it works
Entropy = length · log₂(charset). Time = 2^entropy / 10¹⁰ guesses-per-second.
Example
"Tr0ub4dor&3" → ≈ 72 bits, classified as Strong.
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