What is eDPI?
Last Updated: 2026-09-05
eDPI (effective DPI) is mouse DPI multiplied by in-game sensitivity. Inside one game, that number is how you compare how far the crosshair moves. 800 DPI × 0.5 sensitivity = 400 eDPI. 400 DPI × 1.0 is the same 400 eDPI.
When 400 eDPI is not 400 eDPI
The same eDPI matches inside one game. In another game, it is a different turn.
- In the same title, 400 DPI × 1.0 and 800 DPI × 0.5 move the crosshair the same distance per inch of mouse travel. That is the point of eDPI.
- Across games the number does not transfer. 280 eDPI in Valorant is about 46.7 cm per 360°. 280 eDPI in CS2 is about 148.4 cm per 360°. Same label, different distance.
- eDPI is not a setting. Games do not have an eDPI slider. You change mouse DPI or in-game sensitivity. eDPI is just those two multiplied.
DPI vs eDPI
DPI is the mouse setting. eDPI is that setting times the game's sensitivity.
800 DPI is not 800 eDPI unless sensitivity is 1.0. Two players can share an eDPI and still use different hardware DPI.
The eDPI formula
Multiply the two numbers you already have.
| Mouse DPI | Sensitivity | eDPI | In one game |
|---|---|---|---|
| 400 | 1.0 | 400 | Same crosshair speed |
| 800 | 0.5 | 400 | Same crosshair speed |
| 1600 | 0.25 | 400 | Same crosshair speed |
How to work out your eDPI
Read the two numbers, then multiply. Or skip the math and use the calculator.
- 1
Read your mouse DPI
Open the mouse software (Logitech G Hub, Razer Synapse, SteelSeries GG, Glorious Core) and read the active DPI. Use the profile value, not the number printed on the box.
- 2
Read in-game sensitivity
Open the game's mouse settings and copy the hipfire / default sensitivity exactly. Valorant often sits around 0.2–0.8. CS2 often sits around 1.0–3.0. Those scales are not the same.
- 3
Multiply DPI × sensitivity
800 × 0.35 = 280. That is your eDPI in that game. Use the calculator if you also want cm/360.
After you have the number
Calculate your own eDPI next. If you are switching games, match cm/360, not eDPI.
Convert sensitivity between games. Keep the same cm/360. Do not copy the eDPI.
Game-specific number: Valorant eDPI, CS2 eDPI, Apex eDPI