Dimension scores are derived from public data and fields; weighted into the composite. Reference only.
OHACalculator.com is a free online tool operated by US-based 406 Proxy LLC, built specifically to help active-duty US military personnel stationed overseas estimate their Overseas Housing Allowance (OHA). Developed based on public OHA standard data released by the US Department of Defense, it is not an official US military tool. It primarily serves to give service members a quick reference for their allowance amount, and also doubles as a promotion for the company's military proxy marriage services.
The tool has a very focused core function: users only need to select their rank, overseas duty station, and whether they have dependent family members, to quickly get an estimated monthly tax-free OHA amount, with a breakdown that shows the maximum rent cap and utilities allowance separately. It also lets users toggle between with/without dependents with one click, to clearly show how much allowance increases after getting married.
The tool is completely free, no account registration or login required. All calculations run locally in the user's browser, and the developer officially promises it will never collect or store any personal information entered by users. It currently covers 30 major US military overseas bases across Germany, Japan, South Korea, Italy, the United Kingdom, and Spain.
Pros: The tool is extremely targeted, and solves the pain points of complicated OHA calculation rules and hard-to-predict exchange rate fluctuations. It has an incredibly low barrier to use, and the local calculation approach means solid privacy protection — your personal information will never be leaked. The attached complete OHA FAQ also clearly answers most common questions new service members have.
Cons: The drawbacks are fairly obvious: results are only estimates based on early 2025 exchange rates, not real-time official accurate data, so they can only be used for planning reference. It covers a limited number of bases, and does not include all US military overseas installations. As a lead-generation tool for a private commercial company, there are multiple links directing users to its proxy marriage services throughout the site, so it has fairly strong commercial overtone.
This tool only has practical use for active-duty US military personnel stationed overseas. Regular users in China will almost never have any need for it. The website is currently accessible directly from mainland China without any workaround.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on ohacalculator.com official site.
ohacalculator.com is an United States Online Tools provider. TG4G tracks its product information, an overall rating of 6.0/10, and a China-accessibility score of China direct-connect friendly. Click "Visit Official Site" to reach ohacalculator.com directly.