eDPI Calculator
Combine mouse sensor DPI with in-game sensitivity into effective DPI for comparison.
How the result changes
Only mouse dpi changes; all other inputs stay at your current values. Each dot represents one whole-number input. This is not a forecast of real-world outcomes.
About this calculation
eDPI Calculator: Combine mouse sensor DPI with in-game sensitivity into effective DPI for comparison. Enter mouse dpi, game sensitivity; the reported quantities are effective dpi (eDPI). The equations and examples below show how those inputs lead to the result and where the model's assumptions matter.
Formula
eDPI = mouse DPI × game sensitivity
Worked example
With Mouse DPI: 800 DPI, Game sensitivity: 0.5, effective dpi is 400 eDPI.
Method and inputs
Multiply the mouse’s dots-per-inch setting by the game’s unitless sensitivity multiplier. This common gaming shorthand lets two settings be compared within the same title when the game applies sensitivity linearly.
Worked example
An 800-DPI mouse at sensitivity 0.5 gives 400 eDPI. A 400-DPI mouse at sensitivity 1.0 also gives 400 eDPI under the same game scale, although hardware tracking can feel different.
For the example, raising mouse DPI from 800 to 1,600 while lowering game sensitivity from 0.5 to 0.25 keeps eDPI at 400. The index matches, but sensor behavior and menu cursor speed may still feel different.
How to read the result
eDPI is a comparison index, not a physical turn distance by itself. Different games map sensitivity to angular rotation differently; matching eDPI across titles does not guarantee equal centimeters per 360-degree turn.
A scoped weapon can apply a separate sensitivity multiplier, and a game can use nonlinear acceleration. In those cases one eDPI figure cannot represent every movement mode. Measure centimeters per full turn in the exact game mode if practical equivalence matters.
Assumptions and checks
The sensitivity value must use the game’s actual numeric scale and must be applied as a multiplier. Acceleration, raw-input settings, zoom multipliers and operating-system pointer behavior can change perceived movement.
Do not assume an eDPI from one game is portable to another. Also distinguish mouse DPI from display PPI: one describes mouse sensor counts per inch, the other screen pixels per inch.
Some games display sensitivity as an arbitrary number rather than a literal multiplier, so multiplying by DPI produces a within-game index only. If another title uses a different yaw constant, identical eDPI values can imply different physical mouse travel for the same camera rotation.
Common questions
What does the edpi calculator calculate?
It produces an effective-DPI comparison value by multiplying sensor DPI and the selected in-game sensitivity.
When should I recalculate or check another method?
Recalculate when either setting changes. For cross-game calibration, measure physical mouse travel for a full in-game rotation or use an explicit yaw-conversion method.
Inputs
- Mouse DPI (DPI)
- Game sensitivity