Tired of your aim feeling 'off' every time you try a new mouse DPI or switch games? Achieving consistent aim is all about muscle memory, and that requires a consistent sensitivity. Our Free Mouse DPI & eDPI Calculator helps you find your "true sensitivity" and maintain it, even when you change your mouse hardware settings.

How to Use the eDPI Calculator

Maintain your aiming consistency in two simple steps:

1. Calculate Your eDPI: In the first section, enter your current mouse DPI (a hardware setting) and your current in-game sensitivity. The tool will instantly calculate your eDPI (effective DPI), which is your true overall sensitivity.
2. Find Your New Sensitivity: In the second section, enter the New DPI you want to switch to. The calculator will tell you the exact in-game sensitivity you need to set to keep your eDPI identical, preserving your muscle memory.

Understanding DPI, Sensitivity, and eDPI

These three terms are the foundation of mouse aiming in PC games.

What is DPI (Dots Per Inch)?

DPI is a hardware specification for your mouse that measures its physical sensitivity. A higher DPI means the mouse cursor will move further on the screen for the same physical movement of your hand. Common DPI settings are 400, 800, and 1600.

What is In-Game Sensitivity?

In-Game Sensitivity is a software multiplier set within a specific game. It adjusts how the game interprets the raw input from your mouse's DPI. This is why a sensitivity of "2" in one game feels completely different from "2" in another.

What is eDPI (Effective Dots Per Inch)?

eDPI is the one number that matters for consistency. It combines your hardware and software settings into a single, true measure of sensitivity. The formula is simple:

eDPI = Mouse DPI × In-Game Sensitivity

For example, a player with 800 DPI and 0.5 in-game sensitivity has an eDPI of 400 (800 * 0.5). Another player with 1600 DPI and 0.25 sensitivity also has an eDPI of 400 (1600 * 0.25). Despite different settings, both players have the exact same aiming sensitivity.

Frequently Asked Questions (FAQ)

Q1: Why is keeping my eDPI consistent important?

Answer: Consistency is the key to building muscle memory. By keeping your eDPI the same, the distance you move your mouse to turn 90 degrees or flick to an enemy's head remains identical, regardless of your DPI setting. This makes your aim more reliable and intuitive.

Q2: What is a "good" eDPI for gaming?

Answer: There is no single "best" eDPI; it's highly preferential. However, there are common ranges. Tactical shooters like Valorant or CS:GO often see pro players using a low eDPI (200-400) for precision. Faster-paced games like Apex Legends or Fortnite might see players using a higher eDPI (400-800+) for quicker turning.

Q3: Can I use this to convert my sensitivity between different games?

Answer: Not directly. While your eDPI is a universal concept, different games use different sensitivity scales (e.g., a sensitivity of '1' in Overwatch is not the same as '1' in Valorant). This tool is designed to help you maintain the same eDPI within the same game when changing your mouse DPI. To convert between games, you would need a more specialized converter that knows the multipliers for each game.