eDPI and cm 360 Calculator
Calculate eDPI and cm/360 for gaming mouse sensitivity, with the formulas explained.
Comparing mouse sensitivity
Gamers need a way to compare and match mouse sensitivity across different setups, and eDPI and cm/360 are the two standard measures. This calculates both, useful for finding, comparing and replicating a sensitivity for aiming games.
The two measures
Effective DPI, or eDPI, combines your mouse's DPI setting with your in-game sensitivity into a single number, so two players with different DPI and sensitivity settings can compare their true effective sensitivity:
eDPI = mouse DPI (times) in-game sensitivitycm/360 = the distance you move the mouse to turn a full 360 degreescm/360 is the more physical measure — the actual distance in centimetres you slide the mouse to spin a full circle in-game — so a larger cm/360 means a lower, more deliberate sensitivity, and a smaller one means a faster, twitchier sensitivity.
Why this matters for aiming
Consistency of sensitivity is one of the most important things in aiming games, because your aim is muscle memory — your body learns exactly how far to move the mouse for a given turn — and changing sensitivity resets that learned feel. eDPI lets you compare your sensitivity with others, including professional players whose settings are widely shared, and match a sensitivity you like. cm/360 lets you replicate the exact same physical feel across different games or when you change mouse DPI, by keeping the distance-per-turn constant even as the game's own sensitivity numbers differ. Serious players find a sensitivity that suits them and stick to it, using these measures to keep it identical everywhere. Many top players favour a relatively low sensitivity, a larger cm/360, for precise aim, though the ideal is personal. Calculating eDPI and cm/360 is how competitive gamers take control of one of the most fundamental elements of their aim, keeping it consistent across every game and setup.
Common questions
What is eDPI?
Effective DPI — your mouse DPI multiplied by your in-game sensitivity — a single number that lets players with different settings compare their true sensitivity.
What is cm/360?
The physical distance in centimetres you move the mouse to turn a full 360 degrees in-game — a larger figure means a lower, more deliberate sensitivity.
Why does consistent sensitivity matter?
Aim is muscle memory — your body learns how far to move the mouse for a turn — so keeping sensitivity identical across games preserves that learned feel.
Is anything uploaded?
No. The calculation happens in your browser.