eDPI Calculator

eDPI is your mouse DPI multiplied by your in-game sensitivity, and the eDPI calculator above gives you that number the moment you fill in both fields. It also converts the result into cm/360 and marks where you sit on the typical pro range for the game you picked.

That one number matters because DPI and sensitivity on their own are meaningless. A player at 400 DPI with 2.0 sensitivity and a player at 1600 DPI with 0.5 sensitivity are set up identically in CS2: both have 800 eDPI and both need the same wrist movement to flick 90 degrees. When someone shares a sensitivity, eDPI is the number that tells you whether it is fast or slow.

How to use the eDPI calculator

The calculator sits at the top of this page and updates as you type. There is no submit button.

1. Pick your game under Game. The list covers Counter-Strike 2, CS:GO, Valorant, Apex Legends, Overwatch 2, Call of Duty, Marvel Rivals, Fortnite, Rainbow Six Siege, The Finals, PUBG, Deadlock, Team Fortress 2, Quake, Aim Lab and KovaaK's.
2. Enter your mouse DPI under Mouse DPI. The field starts at 800. If you are not sure what your mouse is set to, read how to check mouse DPI or measure it with the DPI analyzer on the home page.
3. Type your sensitivity exactly as the game shows it under In-game sensitivity. Until you do, the calculator uses a placeholder value for that game, so the pro comparison only appears after you enter your own.
4. Read the three boxes: eDPI, cm/360 and in/360.
5. Below them, the bar labelled Typical pro eDPI in your game shows the low and high ends of the usual pro range and a marker for your value. The sentence under the bar tells you whether you are below, inside or above that range.
6. To work backwards, type a number into Target eDPI (optional). The calculator returns the in-game sensitivity you need at your current DPI to hit that target.

Reset puts the DPI back to 800 and clears the sensitivity and target fields. The bar and verdict only show for games that have a reliable pro range; Deadlock, Team Fortress 2, Quake, Aim Lab and KovaaK's show eDPI and cm/360 only.

What is eDPI and how is it calculated?

eDPI stands for effective DPI. The formula is simple:

eDPI = mouse DPI × in-game sensitivity

So 800 DPI at 0.35 sensitivity in Valorant is 280 eDPI, and 400 DPI at 2.2 sensitivity in CS2 is 880 eDPI. The calculator rounds to two decimal places, which matters for games like Valorant where sensitivity values have three decimals.

The reason the product is useful is that your mouse sensor and the game form a chain. The sensor reports a number of counts per inch of movement, which is your DPI. The game multiplies each count by its sensitivity setting and by a fixed internal constant called yaw to decide how many degrees to rotate. Double one factor and halve the other, and the rotation per inch does not change.

eDPI only works inside one game

The internal yaw constant is different for every game. CS2 rotates 0.022 degrees per count at sensitivity 1, Valorant rotates 0.07 degrees, and Overwatch 2 rotates 0.0066 degrees. That is why 280 eDPI is a normal Valorant setting and an unplayably slow CS2 setting.

If you want to carry your aim from one game to another, do not match eDPI. Match cm/360 instead, which is what the mouse sensitivity converter does. The eDPI calculator shows cm/360 for the same reason: it is the number that stays true when you switch games or mice.

What is a good eDPI? Pro ranges by game

The table lists the ranges the calculator uses for its verdict. They describe where most professional players sit, not a rule you have to follow. The cm/360 column shows the hand movement for one full turn at the typical value.

Two things stand out. First, the numbers across rows are not comparable, which is the yaw problem again: a CS2 pro at 880 and a Valorant pro at 280 are moving their hands almost the same distance. Second, tactical shooters cluster at the slow end, around 45 to 50 cm per turn, while hero shooters and battle royales sit closer to 25 to 30 cm because they involve more turning and tracking.

Fortnite shows its sensitivity as a percentage, and the eDPI convention for that game treats the percentage as a fraction: 800 DPI at 6.3% is 50 eDPI, not 5,040. Type the percentage exactly as the game shows it, with Fortnite selected, and the calculator applies that convention for you.

How to read the pro range bar

The marker shows your eDPI relative to the low and high ends of the range. Inside the range means your setup is in line with most competitive players and you can stop worrying about settings. Below the range means you are slower than most, which is fine if you have a large mouse pad and the arm room to use it. Above the range means you are faster than most, and the trade-off is less precision on small targets such as heads at long range.

Being outside the range is not a mistake. Plenty of good players sit above or below it. It is simply a signal to check whether the choice was deliberate or a leftover from a default setting.

Using the target eDPI field

The target field answers the question most people actually have: "a pro I like uses X eDPI, what sensitivity do I set?" Leave your DPI as it is, type the eDPI you want, and the calculator divides it by your DPI.

A worked example in CS2: you run 800 DPI and want 880 eDPI. Type 880 into Target eDPI (optional) and the result is 1.1. If you prefer 400 DPI, change Mouse DPI to 400 first and the same target gives 2.2.

The same field also helps when you change DPI. Note your current eDPI, switch Mouse DPI to the new value, enter the old eDPI as the target, and you have the sensitivity that keeps your aim identical. For a more detailed version of that workflow, including cm/360 targets, use the DPI calculator.

400 vs 800 vs 1600 DPI at the same eDPI

Because eDPI is a product, the same value can come from many DPI and sensitivity pairs. These three rows all produce 880 eDPI in CS2 and all give 47.2 cm per turn.

In the game, these feel the same. On the desktop, 1600 DPI moves the cursor four times as far as 400 DPI, which is the main practical reason to prefer one over another. The differences in how the sensor itself behaves at various DPI steps are small on modern mice. For a longer discussion of which DPI to pick and why, see DPI vs sensitivity.

Common eDPI mistakes

Mixing up DPI and sensitivity is the most frequent one. A DPI value is a few hundred to a few thousand and lives in your mouse software; a sensitivity is usually a small decimal and lives in the game menu. If your eDPI comes out in the tens of thousands for CS2, the two fields are probably swapped.

The second is using the wrong DPI. Many mice ship at 1600 or 3200 DPI even though the box advertises a much higher maximum, and a DPI button press can silently move you to the next stage. Measure it on the DPI analyzer if you have any doubt, because an eDPI built on the wrong DPI is just a wrong number.

The third is comparing scoped sensitivity. The pro ranges here are for hipfire. Scoped and ADS sensitivity multiply by a separate setting that each game handles differently, so leave those out of the eDPI calculation.

Related

• DPI analyzer measures the real DPI of your mouse with a ruler, so the DPI you type here is correct.
• Mouse sensitivity converter carries the same cm/360 from one game to another.
• DPI calculator finds the new sensitivity when you change DPI or aim for a specific cm/360.
• DPI vs sensitivity explains which of the two settings you should actually change.