Not Official! I have received some emails asking if this is an official calculator. The answer is no. This is a calculator I created to help hone my skills as a developer. Feel free to send it out to whoever you want, just please make sure they know to check out this webpage for updates. For all official questions you might have, please visit the AFPC website at http://www.afpc.randolph.af.mil/affitnessprogram/index.asp.