What is my eDPI?
Enter your mouse DPI and in-game sensitivity to get your eDPI, or fill in any two of the three to find the third.
- eDPI
- 320
At 800 DPI and a sensitivity of 0.4, your eDPI is 320.
eDPI: 320. At 800 DPI and a sensitivity of 0.4, your eDPI is 320.
How to calculate
Computes eDPI (effective dots per inch), the mouse DPI times the in-game sensitivity, or the DPI or sensitivity that gives an eDPI.
Example with the default inputs (Mouse DPI 800, In-game sensitivity 0.4): At 800 DPI and a sensitivity of 0.4, your eDPI is 320.
Formula: eDPI = DPI × in-game sensitivity; DPI = eDPI ÷ sensitivity; sensitivity = eDPI ÷ DPI.
- eDPI compares players in the same game only: each game turns the sensitivity number into a turn angle its own way.
- The calculation is exact on the decimals you type, then rounded for display.
Worked examples
Each example is checked against the calculator on every build.
- Mouse DPI 800, In-game sensitivity 0.4 gives eDPI 320.Source: ProSettings.net, What is DPI & eDPI? https://prosettings.net/blog/what-is-dpi-edpi/ (800 × 0.4 = 320)
- Mouse DPI 400, In-game sensitivity 1.1 gives eDPI 440.Source: ProSettings.net, What is DPI & eDPI? https://prosettings.net/blog/what-is-dpi-edpi/
- eDPI 320, Mouse DPI 1,600 gives In-game sensitivity 0.2.Source: ProSettings.net, What is DPI & eDPI? https://prosettings.net/blog/what-is-dpi-edpi/
- eDPI 280, In-game sensitivity 0.35 gives Mouse DPI 800.Source: ProSettings.net, What is DPI & eDPI? https://prosettings.net/blog/what-is-dpi-edpi/
How it works
eDPI multiplies the two settings that decide how far your view turns for a movement of the mouse:
eDPI = DPI × sensitivity
- DPI is the mouse resolution in dots (counts) per inch, from the mouse software.
- Sensitivity is the number in the game's settings.
Fill in any two of the three and the calculator finds the third:
- eDPI = DPI × sensitivity
- DPI = eDPI ÷ sensitivity
- sensitivity = eDPI ÷ DPI
Rules
- All three values must be more than 0. DPI is at most 100,000, sensitivity at most 1,000, and eDPI at most 100,000,000. A solved value outside these limits has no answer.
- The product and the quotients are worked out exactly on the decimals you type, then rounded once to the nearest 64-bit float. So 400 × 1.1 gives exactly 440.
- Results show up to 6 decimal places, with halves rounded up.
Worked examples by hand
800 DPI, sensitivity 0.4. eDPI = 800 × 0.4 = 320.
400 DPI, sensitivity 1.1. eDPI = 400 × 1.1 = 440.
Keep eDPI 320 at 1600 DPI. sensitivity = 320 ÷ 1600 = 0.2.
eDPI 280 at sensitivity 0.35. DPI = 280 ÷ 0.35 = 800.
Other questions people ask
What is eDPI?
eDPI (effective dots per inch) is your mouse DPI multiplied by your in-game sensitivity. It puts the hardware setting and the game setting into one number, so two players in the same game can compare how fast their aim moves.
How do I calculate eDPI?
Multiply the DPI by the sensitivity: eDPI = DPI × sensitivity. At 800 DPI and a sensitivity of 0.4, eDPI = 800 × 0.4 = 320.
How do I keep the same eDPI when I change my DPI?
Divide your eDPI by the new DPI to get the new sensitivity. To keep an eDPI of 320 at 1600 DPI, set the sensitivity to 320 ÷ 1600 = 0.2. In the calculator, enter the eDPI and the new DPI and leave the sensitivity empty.
Can I compare eDPI between different games?
No. Each game turns its sensitivity number into a turn angle in its own way, so the same eDPI turns you a different amount in different games. Compare eDPI only between players of the same game.
Is a lower or a higher eDPI better?
Neither. A lower eDPI needs more mouse movement to turn, which can help small, precise aim; a higher eDPI turns faster for the same movement. It is a personal preference.
Is DPI the same as CPI?
For a mouse, yes in practice. DPI (dots per inch) and CPI (counts per inch) both say how many steps the mouse reports for each inch it moves. Use the number your mouse software shows.