Test Your Password

Passwordmeter : http://www.passwordmeter.com/
 
Please note, that this application does not utilize the typical "days-to-crack" approach for strength determination. We have found that particular system to be severely lacking and unreliable for real-world scenarios. This application is neither perfect nor foolproof, and should only be utilized as a loose guide in determining methods for improving the password creation process. 

Yet Another Password Meter : http://www.yetanotherpasswordmeter.com/ 

This web site does not transfer data to any server. The application runs strictly in your web browser. The metrics about your passwords is based on observation and best practices. They are just recommendations and do not guarantee that your password is really safe. We try to support you in finding a password that is suitable but we do not guarantee that it is perfect.

How Secure Is My Password :  http://howsecureismypassword.net/

Is this accurate ?It all depends on who's trying to hack your computer and how they're trying to do it. There are many different ways to try and crack a password and this site only does the calculation for one particular sort of hacking attempt: The Brute Force Attack.