Brute Force Time Calculator
Calculate the number of password combinations and time to brute force them at a given attack speed. Understand the security impact of password length and charset.
How to Use the Brute Force Time Calculator
- Enter password length.
- Enter charset size (e.g., 26 for lowercase, 95 for all printable).
- Enter attacker's attempts per second.
- Click Calculate to see combinations and crack time.
Casos de Uso
- •Demonstrating password security in security training.
- •Evaluating password policy strength.
- •Understanding hash algorithm selection impact.
- •Comparing crack times for different password lengths.
Fórmula
Combinations = charset^length. Brute force time = combinations / attempts per second.
Preguntas Frecuentes
How fast can modern GPUs crack passwords?
A high-end GPU can attempt 10–100 billion MD5 hashes/second. Bcrypt/Argon2 reduces this to thousands per second.
What is a dictionary attack?
Dictionary attacks try common words and patterns first, defeating passwords based on dictionary words regardless of length.
How long should a password be?
At least 12 characters for general use; 16+ for sensitive accounts. Use a password manager for unique passwords.