These calculator(s) are for Active, National Guard, and Reserve Army, Navy, Air Force, Marine Corps, Coast Guard and DoD Civilian Employees. They are used for estimation of POV PCS Travel, Mixed-Mode (Air and POV) PCS Travel, and TLE (Temporary Living Expense) Entitlements. That said, the logic behind the numbers comes directly from the Joint Travel Regulation (JTR), and is accurate to the best of my knowledge.