Password Combination Calculator
Calculate the number of possible password combinations and assess security strength
Password Configuration
Character Set Options
Available symbols: ! " # $ % & ' ( ) * + , - . / : ; < = > ? @ [ \ ] ^ _ ` { | } ~
Calculation Results
Password Statistics
Security Analysis
Security Assessment
⚠️ Moderately Secure: This password could be cracked in days to months.
Example Calculation
8-Character Password Example
Configuration: Uppercase + Lowercase + Numbers + 8 symbols
Character set size: 26 + 26 + 10 + 8 = 70 characters
Requirements: At least 1 uppercase, 1 number
Calculation Process
Total combinations = 70^8 = 57,628,162,000,000,000
Invalid (no uppercase) = 44^8 = 19,281,419,067,392
Invalid (no numbers) = 60^8 = 16,777,216,000,000,000
Valid combinations ≈ 40,850,946,000,000,000
Password Security Tips
Use at least 12 characters for strong passwords
Include uppercase, lowercase, numbers, and symbols
Avoid dictionary words and common patterns
Use unique passwords for each account
Character Set Reference
Lowercase (26)
a b c d e f g h i j k l m n o p q r s t u v w x y z
Uppercase (26)
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Numbers (10)
0 1 2 3 4 5 6 7 8 9
Symbols (32)
! " # $ % & ' ( ) * + , - . / : ; < = > ? @ [ \ ] ^ _ ` { | } ~
Strength Guidelines
Weak
< 1 day to crack
Moderate
Days to months
Strong
> 1 year to crack
Very Strong
> 1,000 years to crack
Understanding Password Combinations
What Are Password Combinations?
Password combinations represent the total number of possible passwords that can be created using a specific set of characters and length constraints. This calculation helps assess the security strength of password policies against brute-force attacks.
Why Does Length Matter?
- •Each additional character exponentially increases combinations
- •8 characters: millions of combinations
- •12 characters: trillions of combinations
- •16 characters: quintillions of combinations
Mathematical Formula
Basic Formula
Total Combinations = n^k
n = character set size
k = password length
With Requirements
Valid = Total - Invalid
Uses inclusion-exclusion principle to subtract passwords that don't meet requirements
Security Considerations
Brute Force Attacks
Systematic attempts to guess passwords by trying all possible combinations
Dictionary Attacks
Using common words and patterns reduces effective password strength
Computing Power
Modern systems can attempt billions of combinations per second