Calculate password entropy H = L × log₂(N) bits, where L is length and N is the character set size. Estimates the theoretical information content and resistance to brute-force attack.
The Password Entropy Calculator (H = log₂(N^L) bits) works by applying a well-defined formula to the values you enter. Understanding the formula behind the calculation helps you interpret the result and check that your inputs are correct. Below we break down the key components that drive the Password Entropy.
This calculator evaluates the inputs you provide using a standard, well-established formula for its category. Enter your values, choose the relevant settings, and press Calculate to obtain an accurate, reproducible result that you can verify against reference values or published standards.