Gaming eDPI Calculator.

What is eDPI?

eDPI means effective DPI. It is a simple comparison number that combines your physical mouse DPI with the sensitivity value selected inside a game. The standard calculation used by this calculator is mouse DPI multiplied by in-game sensitivity. For example, if your mouse is set to 800 DPI and your game sensitivity is 1.25, your eDPI is 1,000. The purpose of eDPI is not to measure skill or determine whether a player is better than another player. Instead, it gives you one number that can make sensitivity settings easier to compare when the underlying game uses the same sensitivity scale.

How to calculate eDPI manually

You do not need a calculator or special software to calculate eDPI. First, find the DPI value currently configured on your mouse or in your mouse software. Second, open the game and find the exact in-game sensitivity value used for aiming or camera movement. Third, multiply those two numbers together. The formula is: eDPI = mouse DPI × in-game sensitivity. For example, 400 DPI × 2.00 sensitivity equals 800 eDPI. Another example is 800 DPI × 1.00 sensitivity, which also equals 800 eDPI. These two setups have different physical DPI and sensitivity inputs, but they produce the same eDPI number.

Manual calculation steps

1. Check your actual mouse DPI. Do not assume the mouse is using its factory default setting.
2. Record the sensitivity value shown in the game settings. Keep all decimal places that are relevant to the game.
3. Multiply DPI by sensitivity. For example: 800 × 0.75 = 600 eDPI.
4. Record the final eDPI together with the game name and the original DPI/sensitivity pair so that you can reproduce the setup later.

Why eDPI is useful

eDPI is useful because two players may configure their mouse differently while ending up with the same combined value. One player might use 400 DPI and a sensitivity of 2.00, while another uses 800 DPI and a sensitivity of 1.00. Both combinations equal 800 eDPI. Recording the combined number can therefore make discussions about mouse settings easier, especially when comparing personal configurations, testing a new setup, or documenting settings before changing them.

It can also help when you are experimenting with your own configuration. A sensible workflow is to keep your DPI fixed and change only your in-game sensitivity. After each change, record the new eDPI and how the setting feels in actual gameplay. This makes your testing more repeatable because you know which variable changed. Keeping notes also gives you a reliable baseline that you can restore if a new sensitivity does not feel comfortable.

What eDPI does not tell you

eDPI should not be treated as a complete description of how aiming will feel. Mouse grip, mouse shape, desk space, mousepad size, polling behavior, raw-input settings, display characteristics, field of view, frame rate, game-specific input processing and personal technique can all influence control. A player can therefore use the same eDPI as another player and still experience a noticeably different aiming feel.

eDPI also does not automatically provide a valid comparison between different games. Games can use different sensitivity scales and camera/input relationships. A value that looks identical numerically may not correspond to the same physical turn distance or the same aiming experience in another title. For cross-game comparisons, use a game-specific sensitivity conversion method rather than assuming that equal eDPI means equal sensitivity.

Worked examples

Consider a player using 800 DPI with a sensitivity of 1.25. Multiply 800 by 1.25 and the result is 1,000 eDPI. If that player later changes sensitivity to 0.90 while keeping DPI at 800, the new eDPI is 720. The difference is easy to identify because only one input changed.

As another example, a player using 1600 DPI and 0.50 sensitivity has 800 eDPI. This demonstrates why looking only at mouse DPI can be misleading. Two players can use different DPI values while reaching the same combined eDPI. The number is most useful when the game and sensitivity scale are known.

Practical setup advice

Before changing a sensitivity setting, write down your current DPI, sensitivity and eDPI. Test one major setting at a time rather than changing several variables simultaneously. This makes it easier to understand what caused a change in control. Also keep enough physical mouse space for the movement style you are testing. A sensitivity number that is mathematically valid may still be impractical if your desk or mousepad does not provide enough room for the movements required by the game.

The calculator gives you the arithmetic result. Your actual preference should be based on repeatable testing, comfort, control and the requirements of the game you are playing. There is no single eDPI value that automatically makes every player more accurate.

eDPI Calculator FAQ

What is the eDPI formula?

The basic formula is eDPI = mouse DPI × in-game sensitivity. If your mouse is configured to 800 DPI and your game sensitivity is 1.00, the result is 800 eDPI. If the sensitivity is 0.50 at the same DPI, the result is 400 eDPI. The calculator simply performs this multiplication for you.

Can I calculate eDPI without this tool?

Yes. Find the DPI setting of your mouse, find the game's sensitivity value, and multiply the two numbers manually. For example, 400 DPI multiplied by 2.00 sensitivity equals 800 eDPI. Writing down the original values alongside the result is useful when you want to reproduce the same setup later.

Is higher eDPI better for aiming?

Not automatically. eDPI is a measurement of the relationship between DPI and in-game sensitivity; it is not a score of aim quality. A higher or lower value may feel more suitable depending on the player, game, mouse, available mousepad space, field of view and movement style. Use eDPI to record and compare settings, then evaluate those settings through consistent practical testing.

Can two different DPI and sensitivity combinations have the same eDPI?

Yes. For example, 400 DPI × 2.00 sensitivity equals 800 eDPI, while 800 DPI × 1.00 sensitivity also equals 800 eDPI. This is one of the main reasons the eDPI number is useful: it combines two inputs into a single comparison value. However, equal eDPI does not prove that two physical mouse setups will feel identical because other input and hardware factors can differ.

Can I compare eDPI between CS2 and Valorant?

You should not assume that the same eDPI number represents exactly the same sensitivity experience across different games. Games can use different sensitivity scales and input relationships. When comparing CS2 and Valorant, use a game-specific sensitivity conversion approach instead of treating the raw eDPI values as directly interchangeable.

Why does the same eDPI sometimes feel different?

eDPI only combines DPI and the in-game sensitivity number. It does not describe every part of the input chain. Mouse shape, grip, sensor behavior, polling settings, raw input, field of view, display settings, frame rate and the amount of physical desk space available for movement can all affect the experience. Two players can therefore use the same eDPI while preferring very different setups.

Should I change DPI and sensitivity at the same time?

For controlled testing, it is usually easier to keep one variable fixed while changing the other. If you change both simultaneously, it becomes harder to tell which change affected your control. A practical method is to keep mouse DPI fixed, adjust in-game sensitivity, calculate the new eDPI, and test the result over several sessions before deciding whether to keep it.

Does eDPI measure mouse accuracy or skill?

No. eDPI is simply a calculation based on mouse DPI and in-game sensitivity. It cannot measure reaction time, precision, crosshair placement, movement skill, decision making or overall game performance. Use the number as a configuration reference, not as an evaluation of a player's ability.