eDPI Calculator — Mouse Sensitivity & cm per 360 Turn
Convert mouse DPI and in-game sensitivity into eDPI and the distance needed for a full 360.
Formula and sources updated · Data sources · 1View algorithm, constants and default inputs (JSON)
About this calculator
eDPI multiplies mouse DPI by in-game sensitivity so sensitivities can be compared across setups, but it only holds within one game because each game uses a different yaw constant. Centimetres per 360 degree turn is the only figure that transfers between games.
Worked example
calculated with the default values below
Mouse DPI 800 · In-game sensitivity 1 · Game yaw constant CS2 / CS:GO / Apex · Your preferred cm per 360 40 cm eDPI 800 · cm per 360 degree turn 51.95 cm · Inches per 360 degree turn 20.45 in · Mouse travel for a 180 25.98 cm · Sensitivity to hit your preferred cm/360 1.299
Method and assumptions
cm360 = 360 × 2.54 ÷ (DPI × S × Y) eDPI = DPI × S; inverse: S = 360 × 2.54 ÷ (cm360 × Y × DPI). 2.54 converts inches to cm. eDPI multiplies mouse DPI by in-game sensitivity so sensitivities can be compared across setups, but it only holds within one game because each game uses a different yaw constant. Centimetres per 360 degree turn is the only figure that transfers between games. The references explain definitions and methods; any extra preset must be checked against the assumptions on this page.
Data sources
The references explain definitions and methods; any extra preset must be checked against the assumptions on this page.
Disclaimer
These calculators give general estimates for information and entertainment. Platform algorithms, metrics and definitions change without notice, and none of these results are official figures from the platforms named.
Implementation source
This record describes the implementation used by this page. It is not independent validation. External references, when available, support only the stated formula or definition; estimates and custom rules retain their own assumptions.
Formula and variables
cm360 = 360 × 2.54 ÷ (DPI × S × Y)
- DPI
- Mouse DPI
- S
- In-game sensitivity
- Y
- Game yaw factor
- cm360
- Mouse distance per 360° turn (cm)
eDPI = DPI × S; inverse: S = 360 × 2.54 ÷ (cm360 × Y × DPI). 2.54 converts inches to cm.
Frequently asked questions
Why does eDPI change when I switch between games?
eDPI is just DPI times in-game sensitivity, so it looks portable, but each game applies a different yaw constant, here selectable as 0.022, 0.07, 0.0066 or 0.00555. That constant converts sensitivity into real turning distance, so two setups with the same eDPI can spin the view at very different rates. Only cm per 360 transfers cleanly between games.
Which inputs and limits apply to eDPI Calculator — Mouse Sensitivity & cm per 360 Turn?
Use the units shown beside each field. These are form limits, not recommended settings. Mouse DPI: 50–32,000; In-game sensitivity: 0.01–100; Your preferred cm per 360: 5–200 cm cm360 = 360 × 2.54 ÷ (DPI × S × Y) eDPI = DPI × S; inverse: S = 360 × 2.54 ÷ (cm360 × Y × DPI). 2.54 converts inches to cm. eDPI multiplies mouse DPI by in-game sensitivity so sensitivities can be compared across setups, but it only holds within one game because each game uses a different yaw constant. Centimetres per 360 degree turn is the only figure that transfers between games. The references explain definitions and methods; any extra preset must be checked against the assumptions on this page.
What is a complete worked example for Mouse DPI = 800; In-game sensitivity = 1?
Inputs: Mouse DPI = 800; In-game sensitivity = 1; Game yaw constant = CS2 / CS:GO / Apex; Your preferred cm per 360 = 40 cm. Calculation: cm360 = 360 × 2.54 ÷ (DPI × S × Y). Results: eDPI = 800; cm per 360 degree turn = 51.95 cm; Inches per 360 degree turn = 20.45 in; Mouse travel for a 180 = 25.98 cm; Sensitivity to hit your preferred cm/360 = 1.299.