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Military Rank Equivalency Converter
Compare ranks across Army, Navy, Air Force, and Marines by pay grade and NATO code.
Updated July 10, 2026
How to use the military rank equivalency converter
- 1Filter by enlisted, warrant, or officer — or view all.
- 2Find the pay grade you care about (E-5, O-3, etc.).
- 3Read the equivalent rank across each branch.
- 4Check the NATO code for allied comparison.
Common uses
- Finding what a rank is called in another branch
- Comparing US grades to NATO codes
- Understanding rank in a joint or allied setting
- Writing or reading orders across services
Frequently asked questions
How do ranks compare across branches?
By pay grade. Every US service uses the same grades — E-1 to E-9 enlisted, W-1 to W-5 warrant, O-1 to O-10 officer — so ranks at the same grade are equivalent even though titles differ. A Navy Petty Officer Second Class, an Army Sergeant, and an Air Force Staff Sergeant are all E-5.
What are the NATO rank codes?
NATO uses standardized codes so allied forces can compare ranks: OR-1 to OR-9 for enlisted, WO-1 to WO-5 for warrant officers, and OF-1 to OF-10 for commissioned officers. This chart lists the NATO code for each US pay grade alongside the branch titles.
Do the Air Force and Space Force have warrant officers?
The Air Force has historically had none, and the Space Force follows the same officer and enlisted structure as the Air Force (with its own junior-enlisted Specialist titles). The Army, Navy, Marine Corps, and Coast Guard use the warrant grades W-1 through W-5.
About this tool
The military rank equivalency converter lines up ranks across the US services by pay grade, with the NATO code for allied comparison. Filter by enlisted, warrant, or officer and see, for each grade from E-1 to O-10, the equivalent title in the Army, Navy and Coast Guard, Air Force and Space Force, and Marine Corps. It answers the everyday question of what an E-5 or O-3 is called in another branch, and how US grades map to NATO OR, WO, and OF codes. A reference table that runs entirely in your browser.
Like most tools on UtilityBase, the military rank equivalency converter runs entirely in your browser — nothing you enter is uploaded or stored on a server. It's free to use with no account required. Browse more productivity tools here.
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