A good FPS sensitivity is the setting that lets you stop on target, track smoothly, and make small corrections without fighting your mousepad. There is no universal number that works for every player or every shooter. Your grip, desk space, field of view, aiming style, and the game’s input system all matter. This guide gives you a repeatable way to find your own baseline. It uses physical mouse travel, a three-setting test ladder, four common aiming demands, and a seven-day lock-in period. You can use it for Counter-Strike 2, VALORANT, Apex Legends, Overwatch 2, Rainbow Six Siege, or almost any PC shooter. Editorial note: This is a researched practice method from Loadout Ledger, written from a competitive-FPS perspective. It is not a laboratory benchmark, medical advice, or a claim that one sensitivity is objectively best. Start with cm/360, not another player’s number DPI and in-game sensitivity are useful settings, but they do not tell the whole story on their own. A clearer ba...