What is eDPI and why it matters
Effective DPI (eDPI) is the product of your mouse's hardware DPI and your in-game sensitivity setting. It gives you a single number that represents your true mouse sensitivity, making it easy to compare settings across different games, mice, and configurations.
Without eDPI, two players could have wildly different DPI and sensitivity combinations yet move their crosshair at exactly the same speed. eDPI eliminates this confusion by providing one universal metric.
How the calculations work
**eDPI Formula:** \`\`\` eDPI = Mouse DPI x In-Game Sensitivity \`\`\`
**cm/360 Formula:** \`\`\` cm/360 = (360 / (DPI x Sensitivity x Yaw)) x 2.54 \`\`\`
**inches/360 Formula:** \`\`\` inches/360 = 360 / (DPI x Sensitivity x Yaw) \`\`\`
The yaw value is a game-specific constant that determines how many degrees the camera rotates per mouse count. Different games use different yaw values, which is why raw sensitivity numbers cannot be compared across titles.
Game yaw values explained
Each game engine translates mouse input differently. The yaw value (in degrees per count) determines this translation:
- **CS2**: 0.022 (Source 2 engine default) - **Valorant**: 0.07 (higher yaw means lower raw sensitivity numbers for the same speed) - **Apex Legends**: 0.022 (same as CS2, Source engine) - **Fortnite**: 0.5555 (Unreal Engine, much higher yaw) - **Overwatch 2**: 0.0066 (very low yaw, so sensitivity numbers appear higher)
Because of these differences, a sensitivity of "2" in CS2 feels completely different from "2" in Valorant. Always use cm/360 to compare feel across games.
Who should use this
- **FPS gamers** looking to find their ideal sensitivity or match settings across multiple games - **New players** who want to start with a proven sensitivity range used by professionals - **Players switching games** who want to transfer their muscle memory to a new title - **Mouse upgraders** who changed DPI and need to recalculate their in-game sensitivity to maintain the same feel
How to use
1. Select your game from the preset dropdown (or choose Custom for any game) 2. Enter your mouse's DPI setting (check your mouse software if unsure) 3. Enter your in-game sensitivity value 4. View your eDPI, cm/360, and inches/360 results instantly 5. Compare your eDPI against professional player ranges to see where you stand
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