eDPI Calculator

Effective DPI, commonly written as eDPI, is the single number that fully describes your mouse sensitivity in a game. Because sensitivity depends on two separate settings — your hardware DPI and the multiplier inside the game — comparing setups between players is impossible unless you combine both into one figure. eDPI solves that problem by multiplying them together into a universal sensitivity metric that works across every game and every mouse.

The concept became popular in the first-person shooter (FPS) community, where aim precision is tightly linked to how far you physically move your mouse relative to how far your crosshair moves on screen. A player running 800 DPI at sensitivity 1.0 is using the exact same effective speed as someone running 400 DPI at sensitivity 2.0 — both have an eDPI of 800. Without this unified number, sensitivity discussions are filled with confusion; with it, you can instantly compare setups and convert between hardware configurations while keeping your muscle memory intact.

Understanding eDPI also helps you identify where your current setup sits on the competitive spectrum. Professional players overwhelmingly cluster in a narrow eDPI range (roughly 200–1000) because that range offers the best balance of fine-aim precision and fast flick ability. Knowing your own eDPI lets you decide consciously whether you are in that zone or whether you might benefit from adjusting.

This eDPI calculator supports two modes: Calculate eDPI (computes your eDPI and an estimated cm-per-360 turn distance from your DPI and sensitivity) and Match eDPI (finds the sensitivity you need at a new DPI to preserve your existing feel). Both use the actual arithmetic the page performs, so the numbers you see always match exactly.

While eDPI is useful for comparing sensitivity settings, cm per 360 (centimeters of mouse movement needed to spin the camera a full rotation) gives you an even more tangible measurement because it is independent of monitor size and field of view differences between games. The page derives cm/360 from eDPI using the following formula:

cm/360 = (2.54 × 360) / (eDPI × 0.022)

The constant 0.022 is the default yaw value used in many Valve-engine games (Counter-Strike 2, Valorant via conversion) and has become the de facto standard for cross-game sensitivity calculations. The factor 2.54 converts inches to centimeters (since DPI is defined in inches), and 360 is the full rotation in degrees.

A lower cm/360 means faster, snappier aiming — the crosshair travels a full circle with a short mouse movement. A higher cm/360 means slower, more deliberate control. Most competitive FPS pros fall between 25 cm/360 and 65 cm/360. Beginners often start at high eDPI values and gradually lower them as their aim mechanics improve.

It is worth noting that cm/360 is not universally comparable across all games because different titles use different yaw multipliers. The 0.022 constant applies most accurately to CS2 and games that share that default. Other games like Apex Legends use distinct yaw values, so direct cm/360 comparisons should always account for the specific game multiplier. The figure this calculator produces is an estimate using the 0.022 baseline.

When you upgrade to a new mouse or want to switch hardware DPI settings, you often need to adjust your in-game sensitivity so your crosshair moves exactly the same way it did before. The Match eDPI mode solves this with a simple rearrangement of the same formula:

New Sensitivity = Target eDPI ÷ New DPI

For example, if your current setup gives you an eDPI of 800 and you switch from 800 DPI hardware to a 1600 DPI mouse, you need a new in-game sensitivity of 800 ÷ 1600 = 0.5. Your cm/360 stays identical, your muscle memory stays intact, and your crosshair feels the same — only the hardware settings changed.

This matching process is especially important for players who share a computer, use multiple games, or switch between a desktop and a laptop setup. Rather than re-learning your aim every time you change hardware, you can use this calculator to maintain a consistent feel regardless of which DPI your mouse is currently set to.

Many mice on the market have DPI steps rather than continuous adjustment, so the matched sensitivity may be a decimal like 0.8750. Most modern games support decimal sensitivity values, so this rarely causes issues in practice. Always enter the value precisely into your game's settings rather than rounding it, as even small rounding errors accumulate into noticeable shifts at the crosshair.

The eDPI calculator automatically classifies your result into a speed category based on the following thresholds, which reflect the ranges used by competitive players across FPS games:

These are guidance ranges, not hard rules. The right eDPI for you depends on your mousepad size, desk space, grip style, monitor resolution, and the specific game's mechanics. A player with a large extended mousepad may thrive at a very low eDPI that would be impractical on a small desk pad. Similarly, Battle Royale games with large maps and frequent vehicle use often reward slightly higher eDPI than tight tactical shooters.

The most important factor is consistency. Finding an eDPI you can reliably reproduce, practicing at it for weeks, and only changing it deliberately is far more effective than constantly chasing the settings of a pro player whose grip, hardware, and hours of practice differ significantly from yours.

Analyzing professional player settings is one of the most common reasons people reach for an eDPI calculator. Pro players' setups are widely published and often serve as a starting benchmark, though it is essential to understand what those numbers represent in context rather than blindly copying them.

TenZ (Valorant) plays between 200 and 280 eDPI — an extremely low sensitivity that demands significant mouse movement for large crosshair swings, rewarding the precise wrist-and-arm hybrid aiming he is known for. s1mple (CS2) uses an eDPI of approximately 880, which sits in the "High (Fast)" band and supports the aggressive rifle flicks his playstyle is built around. shroud, known for his adaptability across many games, hovers around 320 eDPI — a low tactical value that aligns with his methodical, tracking-heavy aim. Hiko (Valorant) uses roughly 576 eDPI, straddling the medium and high range, while Aceu (Apex Legends) operates at around 800 eDPI for the faster movement mechanics of that game.

Notice that none of these players use very high eDPI. The consensus among top competitive FPS players is that lower eDPI tends to produce more consistent aim because it reduces the impact of involuntary micro-movements and makes it easier to stop precisely on target. However, going too low can make it physically exhausting to play because every large crosshair movement requires an arm sweep across the entire mousepad.

If you are new to optimizing your sensitivity, a reasonable starting point is to calculate your current eDPI using this tool, then compare it to the pro reference table on this page. If you are dramatically above 1000 eDPI, try gradually reducing it in 10–15% steps while spending a week practicing at each new setting before dropping further.