Entropy
Calculate Entropy instantly with the exact formula and a worked example. Free online calculator — no signup.
Entropy
Length
Alphabet size
Entropy
74.0391bits
More about: Entropy
What it calculates
The “Entropy” calculator computes Entropy in bits from 2 parameters: length, alphabet size.
Standard IT calculations for developers and sysadmins.
Example calculation
With parameters Length = 12, Alphabet size = 72 the result is 74.04 bits.
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.