Bah Calculator 2025 Zip Code. Military members can use our 2025 bah rates & charts below to determine their monthly housing allowance based on their military housing area (mha) and grade. Use this bah calculator and enter your zip code to determine your military housing area (mha) aka county cost group.
The dod calculates bah rates based on a uniformed service member’s geographic duty location, paygrade and dependency status, along with housing costs in each local market. If you have dependents, check the box indicating so, and the bah amount will update at the top.
