Introduction
The Overseas Housing Allowance (OHA) Calculator shows what the military may pay you for housing when you live off base in a foreign country. Enter your duty location, your pay grade, and whether you have dependents. The tool then shows your rent ceiling, your utility allowance, and your one-time move-in payment (MIHA).
OHA has three parts. The rent ceiling is the most rent the military will cover each month. If your rent is lower, you only get what you actually pay. The utility and maintenance allowance is a flat monthly amount for things like power, water, and upkeep. MIHA is a single payment when you move in, to help with deposits and fees.
You can search by base name, city, or nickname. Type "KMC," "Wolf Pack," or "Okinawa" and the tool finds the right rate area. It covers duty stations in Germany, Japan, South Korea, Italy, the United Kingdom, Spain, the Middle East, Guam, and more.
Rates show in local money and in U.S. dollars. Because DoD updates the exchange rate twice a month, your dollar amount can shift even when the local rate stays the same. You can change the exchange rate to match your current pay system rate with help from a currency calculator.
OHA is tax-free. These numbers are estimates to help you plan and compare housing costs. Pair this tool with the Military Pay Calculator to see your full compensation picture, and check with your local housing office for your official rate before you sign a lease.
How to use our Overseas Housing Allowance (OHA) Calculator
Enter your overseas duty station, pay grade, dependent status, rent, and exchange rate. The OHA calculator shows your monthly rent ceiling, utility allowance, one-time MIHA payment, and your total monthly and yearly OHA in both local currency and U.S. dollars.
Search duty station, city, nickname, or country: Type at least two letters to find your base. Nicknames work too, like "KMC," "GTMO," or "Wolf Pack." Use the arrow keys and press Enter to pick a match.
Country / host nation: Pick the country where you are stationed. This is another way to find your base if you do not want to use the search box.
Installation / city: Choose your base or city from the list. This box turns on after you pick a country.
Pay grade: Select your rank, such as E-5, W-3, or O-4. Higher pay grades get a higher rent ceiling. Service-specific tools like the Army Pay Calculator, Navy Pay Calculator, and Air Force Pay Calculator can show the base pay that goes with your grade.
Dependency status: Tap "With Dependents" if you have a spouse or children with you. Tap "Without Dependents" if you do not. Without dependents lowers your rent ceiling and utility allowance.
Actual Monthly Rent: Type the rent you pay each month in local money. OHA pays the lesser of your rent or the ceiling. Leave it blank to see just the ceiling. If you are budgeting a move mid-month, the Prorated Rent Calculator helps split the first month's cost.
DoD exchange rate: This is filled in for you. Change it to match the current rate in the pay system for a closer USD estimate. The Euro to USD Calculator and Yen to USD Calculator are handy for Europe and Japan tours.
Chart currency: Switch the bar chart between local currency and U.S. dollars to compare with and without dependents.
Press Calculate to see your results and the step-by-step math. Press Reset to start over.
What Is the Overseas Housing Allowance (OHA)?
Overseas Housing Allowance, or OHA, is money the military pays service members who live in private housing outside the United States. It helps pay rent and utilities in places like Germany, Japan, South Korea, Italy, and the United Kingdom. OHA is tax-free, and it takes the place of Basic Allowance for Housing (BAH), which is used for duty stations inside the U.S. If you are heading back stateside, the BAH Calculator and the Army BAH Calculator cover that side of the move.
OHA is based on where you are stationed, your pay grade, and whether you have dependents. Rates are set for each rate locality — a set area around one or more bases. That is why Ramstein, Vogelweh, and Landstuhl all share one Kaiserslautern rate, and why every base on Okinawa uses the same island-wide rate.
The Three Parts of OHA
- Rent allowance (rental ceiling): This is the most rent OHA will pay each month. You get your actual rent up to that limit. If your rent is lower, you get only what you pay. If your rent is higher, you pay the extra yourself. Use a Rent Affordability Calculator to see how much out-of-pocket rent your budget can absorb.
- Utility and recurring maintenance allowance: A flat monthly amount for things like power, water, heat, and trash. You get the full amount no matter what your real bills are. An Electricity Cost Calculator can help you see whether the flat rate covers your usage.
- Move-In Housing Allowance (MIHA): A one-time payment when you move in. It helps with deposits, agent fees, and hook-up costs. It is not paid every month. The Moving Cost Calculator is useful for estimating the rest of your PCS expenses.
How Exchange Rates Affect Your Pay
Your rent ceiling is set in the local money, but your pay lands in U.S. dollars. The Department of Defense updates the pay exchange rate on the 1st and 16th of each month. So the dollar amount on your Leave and Earnings Statement (LES) can go up or down even when the local rate stays the same. Some places, like Guam, Puerto Rico, Djibouti, and Guantanamo Bay, pay in dollars, so no conversion happens there. Because prices abroad differ from home, a Cost of Living Calculator and a Monthly Budget Calculator are good companions when you plan an overseas tour.
Things to Know Before You Sign a Lease
Dependency status matters. Members without dependents get a lower rent ceiling and a smaller utility amount, while MIHA stays the same. Higher pay grades get higher ceilings. You must report your real rent to your finance or housing office, and OHA never pays more than what you actually spend on rent. Rates change over time, so always confirm your final numbers with your local housing office and the official DoD rate tables.
Related Military and Benefits Tools
OHA is one piece of your total military compensation. Look at the Military Retirement Calculator and the TSP Calculator for long-term planning, the VA Disability Calculator and VA Combined Rating Calculator for service-connected benefits, and the GI Bill Calculator or GI Bill BAH Calculator if school is next. For pay-period math, try the Paycheck Calculator, the Take Home Pay Calculator, or the Military Time Calculator for duty scheduling.