Introduction
eDPI stands for effective dots per inch. It is the single number that shows how fast your mouse cursor moves in a game. You get it by multiplying your mouse DPI by your in-game sensitivity. This matters because two players can use very different DPI and sensitivity settings but still have the exact same cursor speed if their eDPI is the same.
This eDPI calculator does the math for you instantly. Enter your mouse DPI and in-game sensitivity, pick your game, and the tool gives you your eDPI, your cm/360° distance, and a comparison to pro player settings. It supports over 100 games including CS2, Valorant, Apex Legends, Overwatch 2, Fortnite, and Rainbow Six Siege. Each game uses a different yaw value, and the calculator accounts for that automatically.
You can also use the Sensitivity Finder tab to work backward. If you know the eDPI you want, it will tell you the exact sensitivity to set in your game. The tool even converts your sensitivity across games so your aim feels the same no matter what you play. If you are also looking to optimize your gaming rig, try our FPS Calculator to check your expected frame rates or our Bottleneck Calculator to identify hardware limitations.
How to Use Our eDPI Calculator
Enter your mouse and game settings below to find your effective DPI (eDPI). The calculator will show your eDPI, how far you move your mouse for a full 360° turn, and how your settings compare to pro players.
Choose your mode. Click the "eDPI Calculator" tab to find your eDPI from a known sensitivity. Click "Sensitivity Finder" to find the sensitivity you need to hit a target eDPI.
Set your Mouse DPI. Type your mouse DPI or click a preset button like 400, 800, or 1600. You can find your DPI in your mouse software, such as Logitech G HUB or Razer Synapse. DPI describes how many dots the sensor registers per inch of movement, similar to how PPI (pixels per inch) measures the density of pixels on a display.
Enter your In-Game Sensitivity. Type the sensitivity number from your game's settings. If your game shows sensitivity as a percent, click the "Percent" button first. Our Percentage Calculator can help if you need to convert between decimal and percent values.
Enter a Target eDPI (Sensitivity Finder tab only). Type the eDPI you want to match, and the calculator will tell you what in-game sensitivity to use.
Set Raw Input. Keep this switch on if your game uses raw input. Turn it off if your game reads Windows mouse settings. When off, a slider appears so you can pick your Windows pointer speed level.
Pick your game. Type in the search box to find your game from the list. Each game has a different yaw value that affects how sensitivity works. If your game is not listed, choose "Custom Yaw" and type the yaw number yourself. For Minecraft players, we also offer a Minecraft Stack Calculator and a Minecraft Server RAM Calculator for other in-game needs.
Add ADS Sensitivity (optional). Click the ADS section to open it. If your game has a separate aim-down-sights multiplier, type it here. Leave it at 1.0 if it does not apply.
View your results. Press "Calculate" or just change any input. The calculator instantly shows your eDPI, your cm/360° and inches/360° distances, a speed rating, a mousepad size suggestion, matching pro player stats, and equivalent sensitivities for other popular games.
What Is eDPI?
eDPI stands for effective dots per inch. It is a single number that shows how fast your mouse cursor moves in a game. You get it by multiplying two things: your mouse DPI and your in-game sensitivity.
For example, if your mouse DPI is 800 and your in-game sensitivity is 1.5, your eDPI is 1,200. A player with 400 DPI and 3.0 sensitivity also has an eDPI of 1,200. Both players will have the exact same cursor speed in-game, even though their settings look different. This is the same principle behind any ratio: different pairs of numbers can produce the same product.
Why eDPI Matters
DPI alone does not tell you how fast you aim. Sensitivity alone does not either. eDPI combines both into one number so you can compare your setup to other players. This is why pro players and coaches use eDPI when talking about aim settings. If you track your competitive performance, our KD Calculator can help you see whether sensitivity changes improve your kill-to-death ratio over time.
A low eDPI means you need to move your mouse a long distance to turn around. This gives you more control for precise aiming. A high eDPI means a small hand movement turns you a lot. This is faster but harder to control.
How cm/360° Works
The cm/360° number tells you how many centimeters you must move your mouse to do a full 360-degree turn in your game. A lower eDPI means a higher cm/360° value, which means more desk space is needed. Many games use a yaw value to convert eDPI into real-world distance. Different games use different yaw values, so the same eDPI can feel different across games. If you want to understand how your monitor's physical dimensions relate to what you see, our Screen Size Calculator and Aspect Ratio Calculator can help you match your display to your setup.
Raw Input and Windows Pointer Speed
Most competitive games have a raw input setting. When raw input is on, the game reads your mouse directly and skips Windows pointer speed settings. When it is off, Windows can speed up or slow down your cursor before the game sees it. For consistent aim, most players keep raw input turned on. Reducing input lag also depends on your system running smoothly, so make sure your hardware is not holding you back by using our Bandwidth Calculator for network performance and Download Time Calculator for estimating game download speeds.
What Is a Good eDPI?
There is no single perfect eDPI. The best range depends on the game you play. In CS2, most pro players use an eDPI between 600 and 1,200. In Valorant, the typical range is 200 to 500. In Overwatch 2, it is 1,500 to 3,500. These ranges differ because each game uses a different yaw value in its engine.
If your eDPI is too low, you may not be able to turn fast enough in close fights. If it is too high, you may struggle to land precise shots at long range. Start within the recommended range for your game and adjust from there based on what feels right. Tracking your win rate before and after sensitivity changes is a practical way to measure improvement. For damage-focused roles, our DPS Calculator can also help you evaluate output alongside your aim settings.