Bit Byte conversion - Base 2 conversions. Convert bytes to kilobytes and back etc.. - Website has many general and scientific conversion pages - Returns the external IP address of your network - Determine the local time and date of cities around the world

Online Periodic Table of the Elements

ISO Country Codes - List of the two letter country codes used for storage - File extension lookup. Determine the program that uses a given file extension - Determine present United States time