BB FPS Converter is a app that helps you convert between BB velocity, BB weight, and BB energy. It easily and quickly converts results as you change the values. This app is intended for paintball, airsoft, and air guns that uses air to propel its ammunition. It does not matter whether the ammmunition is made out of plastic, metal, or paint, because it uses the universal unit of velocity, weight, and energy. The velocity (speed) is specified in feet per second (FPS). The weight is specified in gram (g). The energy is specified in joules (j). It is a fun and exciting solution to calculate the FPS difference when you change the BB weight. Also a proven assistant to help you as you upgrade, modify, and maintain your gun. It works for automatic electric gun (AEG), gas blowback, spring pistols and rifles, and paintball markers alike. It remembers your value, so that you don't have to keep re-entering your common settings. As a bonus, the BB FPS Converter app has a link to our Airsoft Forum and a link to our Airsoft Wiki. You can gain valuable information at sport of airsoft, chat with other airsoft players, and trade secrets. So download this app now and take your airsoft/paintball battles to the next level. Menu Options: Select Text, Select text to copy to clipboard. Copied text can be pasted into other Android apps. This menu option is available on Android 2.3 and prior. On Android 4.1, long tap on a word to select and copy text. Share - Share the app with family and friends. About - Brings up the About dialog which shows you information about this app, such as the version number. Quit Shuts down the app completely.