You don't know your base sensitivity?
The PSA (Perfect Sensitivity Approximation) Calculator is a free online tool designed to help FPS players find their perfect mouse sensitivity. Instead of relying on random guesswork, PSA uses a structured method that guides you through a series of steps to accurately narrow down your ideal setting.
In any competitive first-person shooter game, mouse sensitivity can make the difference between consistent accuracy and frustrating misses. If your sensitivity is too high, your aim becomes jittery; too low, and you can’t react fast enough. Finding a setting that's both precise and comfortable ensures that your mechanics become reliable, helping you perform better consistently. PSA Calculator is designed to make that process simple, logical, and fast.
No, any gaming mouse and mousepad will work fine. PSA is based on your personal feel and consistency, not expensive gear.
Typically around 20–30 minutes. You should spend at least 5–10 minutes testing each sensitivity for the best results.
PSA Calculator is useful for any FPS game: Valorant, CS:GO, Apex Legends, Overwatch, Call of Duty, and more.
Yes! Your ideal sensitivity can change slightly over time with new equipment, settings, or playstyle adjustments. PSA is simple to redo anytime.
While no method can guarantee perfection, PSA is one of the most reliable systems available for helping players fine-tune their sensitivity scientifically.
PSA Calculator was created to offer FPS players a reliable, no-nonsense tool to improve their aim without confusion. Inspired by professional aim training methods, our tool brings the same structured optimization process to everyone — for free, in your browser, with no downloads or complicated setups.
PSA Calculator isn’t about finding a magic number overnight. It's about helping you build a stable aiming foundation so you can grow as a player. Use your perfect sensitivity as your starting point, train regularly, and you'll be amazed at how much smoother your aiming feels day by day.
Many players unknowingly slow down their improvement by changing settings too frequently or chasing numbers they see used by professional players. The best sensitivity is the one that feels natural to your hand movement — not a value someone else recommends. PSA Calculator eliminates guesswork and prevents you from making emotional or rushed changes.
If you want to maintain and improve your aim after finding your perfect sensitivity, consistency is key. A basic daily routine could look like this:
Keeping a stable warm-up routine not only reinforces your muscle memory but also helps you adjust naturally to subtle daily variations like hand temperature, grip fatigue, and reaction sharpness.
We're committed to expanding the PSA platform with more tools for gamers. Future updates may include custom tracking tests, sensitivity convergence tests, and cross-game sensitivity converters. Stay tuned for new features designed to make your practice smarter and your gameplay sharper!
Iteration: 1/7