📏 Armor Plate Size Finder
Enter your torso height and get the recommended SAPI plate size with its width and height — so your plate protects your vitals without riding into your throat or hips.
📏 Find Your Plate Size
What is an Armor Plate Size Finder?
It matches your body to the right plate cut. Hard armor plates come in a handful of standard SAPI sizes, and picking the wrong one is a comfort and safety problem — too tall and it chokes your movement, too small and it leaves vitals exposed. Enter your torso height and this tool points you to the standard size that fits.
Use it before buying plates or a carrier so you order the correct cut the first time. It's an informational starting point based on standard dimensions — always confirm the exact fit with the plate manufacturer.
❓ Frequently Asked Questions
How do I measure for an armor plate?
The key measurement is torso height: from the sternal notch (the dip at the base of your throat) down to about level with your navel. That length determines how tall a plate you can wear without it riding into your throat or digging into your hips when you sit or crouch.
What are the standard SAPI plate sizes?
The standard U.S. SAPI/ESAPI cuts are Small (7.25 × 11.5 in), Medium (9.5 × 12.5 in), Large (10.125 × 13.25 in), and Extra-Large (11 × 14 in), given as width × height. Medium fits a large share of adults, but your torso height is what should drive the choice.
Should a plate cover my whole chest?
A front plate is meant to protect the vital organs — heart and lungs — not your entire torso. It should sit with the top edge at the sternal notch and cover down to about the navel. Bigger isn't better: an oversized plate restricts movement and can ride dangerously high. Prioritize correct coverage of the vitals.
Is this size recommendation exact?
It's a starting point based on torso-height bands and the standard SAPI dimensions. Cuts, curvature, and sizing differ between manufacturers, so always confirm the exact fit and cut with the plate maker before buying — a properly fitted plate is a safety matter.