Password Combination Calculator

Find the number of possible passwords and the entropy.

Possible passwords 5.40360087662637e+23

Entropy (bits) 78.838

Formula: combinations = charset^length; entropy = length·log₂(charset)

Step-by-step with your numbers:

1. Values used:

2. Character set size = 95

3. Password length = 12

5. Possible passwords = 5.40360087662637e+23

6. Entropy = 78.838bits

Did we solve your problem today?

Password strength grows exponentially with length and character variety.

The math behind it

combinations = (charset size)^length. Entropy in bits = length × log₂(charset). 80+ bits is strong.

95 printable characters, length 12 → about 73 bits of entropy.

Length or complexity?

Length wins — each added character multiplies the possibilities.