Computed Truth
Password complexity isn't just about weird characters; it's primarily about **Length**. A 15-character password made of only lowercase letters (70 bits) is mathematically harder to guess than an 8-character "complex" one (52 bits).
Password Entropy Calculator
Analyze Strength
The Technical Proof
Entropy ($E$) measures the amount of information (randomness) in a password:
$$ E = Length \times \log_2(PoolSize) $$
Pool Size ($R$) is determined by the character sets used:
- Lowercase (a-z): 26
- Uppercase (A-Z): 26
- Digits (0-9): 10
- Symbols (!@#...): ~33
Example: 8 chars from full pool (95) = $8 \times \log_2(95) \approx 52$ bits.