About PSA Calculator

The ultimate tool for finding your perfect FPS mouse sensitivity

Our Mission

PSA Calculator helps FPS gamers discover their perfect mouse sensitivity through proven approximation methods.

Finding the right sensitivity is crucial for consistent aim and peak performance. Our tool eliminates the guesswork by using the Perfect Sensitivity Approximation (PSA) method - a systematic approach that compares different sensitivity levels to identify your optimal setting.

What is PSA?

Perfect Sensitivity Approximation (PSA) is a methodical testing approach that helps players find their ideal sensitivity by:

  • Systematic Testing: Comparing multiple sensitivity levels through structured gameplay
  • Objective Analysis: Focusing on consistency and comfort rather than arbitrary numbers
  • Proven Results: Used by professional players and coaches worldwide

Key Features

Free & Accessible

No registration required, works in any browser

Privacy First

All calculations happen locally in your browser

Game Agnostic

Works with any FPS game that uses mouse input

Scientifically Based

Built on proven sensitivity optimization methods

Technology & Development

PSA Calculator is built with modern web technologies for optimal performance and accessibility:

  • Pure Web Standards: HTML5, CSS3, and vanilla JavaScript for maximum compatibility
  • Client-Side Processing: No server dependency, ensuring privacy and speed
  • Responsive Design: Works seamlessly on desktop, tablet, and mobile devices
  • Open Development: Continuously improved based on community feedback

Get In Touch

Have questions, suggestions, or feedback? We'd love to hear from you!

Contact us at hesui8618@gmail.com or visit our Contact page.

Our commitment: PSA Calculator will always remain free and accessible to the gaming community.