How to Use PSA Calculator

Follow this guide to find your perfect FPS mouse sensitivity

Quick Start

PSA Calculator helps you systematically find your optimal sensitivity through comparison testing.

1
Enter Current Sensitivity

Start with your current in-game sensitivity

2
Test Three Options

Try Lower, Base, and Higher sensitivity versions

3
Choose Best Feel

Select the sensitivity that felt most comfortable

4
Repeat Process

Continue narrowing down until you find perfection

Detailed Testing Method

Step 1: Preparation

  • Open your favorite FPS game (training mode recommended)
  • Note your current sensitivity setting
  • Ensure consistent mouse settings (no acceleration, consistent DPI)

Step 2: Generate Test Sensitivities

  • Enter your current sensitivity in PSA Calculator
  • Click "Start PSA Test" to generate three variants
  • Note down the Lower, Base, and Higher values

Step 3: Test Each Sensitivity

  • Test each sensitivity for 3-5 minutes of gameplay
  • Focus on comfort, not immediate performance
  • Try different scenarios: flicking, tracking, micro-adjustments
  • Don't overthink - trust your natural feel

Step 4: Make Your Choice

  • Select the sensitivity that felt most natural
  • If unsure between two options, go with the lower one
  • Continue with more iterations if needed
  • Stop when you feel confident about your choice

Tips for Success

Take Your Time

Don't rush the process. Each sensitivity test should last 3-5 minutes minimum.

Stay Consistent

Use the same DPI, mouse settings, and game throughout the entire process.

Trust Your Feel

Focus on comfort and natural movement rather than immediate accuracy.

Test Different Scenarios

Try various aiming tasks: long-range precision, close-range flicks, tracking moving targets.

Don't Overthink

Your first instinct is often correct. Avoid second-guessing yourself too much.

Practice Patience

Finding perfect sensitivity may take multiple sessions. Don't expect instant results.

Common Questions

How many iterations should I do?

Most players find their perfect sensitivity within 3-5 iterations. Stop when you feel confident about your choice.

What if I can't decide between two sensitivities?

When in doubt, choose the lower sensitivity. Lower sensitivity typically provides better precision for most players.

Can I use this for different games?

Yes! The PSA method works for any FPS game. Just convert your final sensitivity to each game's scale.

How often should I redo the PSA test?

Only when you change hardware (mouse, mousepad, monitor) or feel your current sensitivity isn't working well.

Need Help?

If you have questions about the PSA method or need personalized sensitivity advice, our team is here to help.

Get Support & Ask Questions