Mouse DPI Calculator
Calculate eDPI, cm/360, and convert sensitivity between games. Compare CS2, Valorant, Fortnite, Apex and Overwatch settings.
Enter DPI, game, and sensitivity.
How Does the Formula Work?
The Mouse DPI Calculator turns your mouse DPI and in-game sensitivity into three results: eDPI, the centimeters of mouse travel for a full 360-degree turn, and the matching sensitivity in five other games. It covers CS2, Valorant, Overwatch 2, Apex Legends, Fortnite and Rainbow Six Siege.
cm/360° = (360 × 2.54) ÷ (DPI × Sensitivity × Yaw)
Game Yaw Constants:
CS2 / CS:GO: 0.022 | Valorant: 0.07
Overwatch 2: 0.0066 | Apex Legends: 0.022
Fortnite: 0.005555 | R6 Siege: 0.018 ÷ π ≈ 0.00573
Sensitivity Conversion:
New Sens = (Old Sens × Old Yaw) ÷ New Yaw
Understanding eDPI
Multiply your mouse DPI by your in-game sensitivity and you get eDPI. Within one game it compares setups fairly: 400 DPI at 2.0 and 1600 DPI at 0.5 both give 800 eDPI and turn the camera by the same amount. Between games it does not, because each game applies its own yaw: 800 eDPI is 51.95 cm/360 in CS2 and 16.33 cm/360 in Valorant. To compare across games, use cm/360.
CM/360 Explained
Centimeters per 360 degrees is how far you move the mouse to turn the camera once around. It is the one figure that means the same thing in every game, so it is the number to keep when you switch. A smaller value means a faster turn, a larger value a slower one.
Cross-Game Sensitivity Conversion
Each game turns the camera by a fixed number of degrees per mouse count at sensitivity 1, called its yaw. CS2 and Apex share 0.022, so the same number works in both. Valorant uses 0.07, so a CS2 sensitivity divided by about 3.18 gives the Valorant equivalent. Fortnite shows its sensitivity as a percentage: type 6.4 for 6.4%, which at 800 DPI is 32.15 cm/360. The yaw values are the ones two aim trainers, KovaaK's and Aiming.Pro, use in their converters (for Valorant they differ by under 0.1%). PUBG was removed from the list because its turn speed changes with FOV instead of following one constant.
Finding Your Ideal Sensitivity
Practice tracking targets and flicking to corners. If you keep overshooting, raise your cm/360 (lower sensitivity); if you cannot reach targets quickly, lower it. Once a value feels right, use this calculator to set the same cm/360 in every game you play.
Tips & Recommendations
One entry gives the equivalent setting in the other five games.
Type the number Fortnite shows, without the % sign: 6.4 means 6.4%.
eDPI compares setups within one game; cm/360 compares them across games.
Keep the same cm/360 in every game and only the sensitivity number changes.
Frequently Asked Questions
What is eDPI?
eDPI is mouse DPI multiplied by in-game sensitivity. Two players with the same eDPI in the same game turn at the same speed; between games the yaw differs, so compare cm/360 there instead.
Is a low or a high cm/360 faster?
A low cm/360 is a fast sensitivity: less mouse travel turns you all the way around. A high cm/360 is slow. The calculator does not rate a value as good or bad; it shows your number so you can keep it the same between games.
How do I convert sensitivity between games?
The calculator automatically converts using each game yaw constant. Enter your DPI and sensitivity for one game, and see equivalent settings for CS2, Valorant, Overwatch 2, Apex, Fortnite and R6 Siege.
What does DPI measure?
DPI, also called CPI, is the number of counts the mouse sends for each inch it moves. Doubling DPI and halving sensitivity keeps the same cm/360, which is why the calculator asks for both.
Why is PUBG not included?
PUBG changes how far you turn with the field of view (FOV), so one yaw constant cannot convert it. Rather than show a number that would be wrong for most settings, the calculator leaves it out.
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