Free eDPI calculator
Enter your mouse DPI and in-game sensitivity to get your eDPI — the single number that captures your true aim speed — plus the cm/360 turn distance for your game, updated live, as you type.
On this page14 sections
| Game | From | Typical (pro) |
|---|---|---|
| Valorant | 200 | 280–380 |
| CS2 / CS:GO | 600 | 800–1000 |
| Apex Legends | 800 | 1000–1600 |
| Overwatch 2 | 3000 | 4000–6000 |
eDPI = mouse DPI × in-game sensitivity. cm/360 uses the game's yaw. eDPI compares within one game; cm/360 compares across games. See eDPI vs cm/360
Results are estimates. Consult a professional.
How the eDPI calculator works
Your aim speed is set by two numbers — your mouse DPI and your in-game sensitivity — and on their own neither tells the whole story. eDPI (effective dots per inch) folds both into one figure so any two setups can be compared at a glance. The calculator multiplies them, then works out your cm/360: the real distance your hand drags the mouse to spin a full circle in the game you pick.
What the eDPI number tells you
A higher eDPI means a faster, twitchier aim; a lower eDPI means a slower, steadier one that needs more desk space. Because it combines both settings, eDPI lets you copy a pro's feel without owning their mouse: 800 DPI at 0.5 sensitivity and 1600 DPI at 0.25 are both 400 eDPI, so they aim identically in the same game.
What goes into your eDPI
Two inputs decide your eDPI, and a third decides your cm/360. Get each one right and the comparison is honest; mix up DPI with sensitivity and the number is meaningless.
Mouse DPI — the hardware setting
DPI (dots per inch), sometimes called CPI, is how many counts your mouse reports per inch of physical movement. It is set in your mouse software, not the game. Most competitive players use 400, 800, or 1600 DPI, because round numbers avoid the pixel-skipping that can happen at odd values on some sensors.
In-game sensitivity — the software setting
This is the slider inside the game's options that you raise or lower to make aiming faster or slower. Its scale is game-specific: a sensitivity of 0.4 in Valorant feels nothing like 0.4 in Overwatch, because each game multiplies it differently. That is exactly why eDPI exists — and why eDPI only compares within one game.
Game — the cm/360 yaw
The game you pick sets the yaw: the degrees your view turns per mouse count at sensitivity 1.0. Source-engine games (CS2, CS:GO, Apex) share a yaw of 0.022, Valorant uses 0.07, and Overwatch 2 uses 0.0066. The yaw never changes your eDPI — it only converts your settings into the cm/360 turn distance.
A worked example using the eDPI calculator
Maya plays Valorant on a 800 DPI mouse and wants to match a pro running 0.4 in-game sensitivity. She needs her eDPI to compare against other players, and her cm/360 to know how much mousepad a full turn eats.
Step 1 — Find the eDPI
Multiply the two settings: 800 × 0.4 = 320 eDPI. That sits right in the Valorant pro sweet spot of about 280–380.
Step 2 — Convert to cm/360
Valorant's yaw is 0.07, so cm/360 = 914.4 ÷ (800 × 0.4 × 0.07) = 914.4 ÷ 22.4 = 40.8 cm (about 16.1 in). A full 360° spin drags the mouse roughly the width of a large mousepad.
Step 3 — Sanity-check the feel
A 40 cm turn is a classic low-sensitivity setup: precise for flicks and spray control, but it needs room to swipe. If Maya's pad is smaller than that, she would raise her sensitivity (and eDPI) to shorten the turn, trading a little precision for fewer lift-and-reposition motions.
What is a good eDPI? Common ranges by game
There is no single correct eDPI, but every game has a band most competitive players settle into. These figures are pro and high-level averages — a starting point, not a rule. Lower values favour precision and need more desk space; higher values favour speed.
| Game | Low-sens | Typical (pro) | Higher |
|---|---|---|---|
| Valorant | ~200 | 280–380 | 400+ |
| CS2 / CS:GO | ~600 | 800–1000 | 1200+ |
| Apex Legends | ~800 | 1000–1600 | 1800+ |
| Overwatch 2 | ~3000 | 4000–6000 | 7000+ |
Ranges reflect commonly reported pro and high-level eDPI values per game; the scales differ because each game uses a different sensitivity multiplier. Treat them as guidance, not targets.
When to use this eDPI calculator
Reach for it any time your aim depends on two settings at once — which is every time you change a mouse, copy a setup, or try a new game.
- Copying a pro's sensitivity — convert their DPI and in-game sens into one eDPI you can match on your own hardware.
- Switching mice — keep the same feel by hitting the same eDPI, even if the new mouse runs a different DPI.
- Comparing with teammates — share one number instead of two, so everyone knows whose aim is faster.
- Moving between games — read across to cm/360 to carry your muscle memory from one title to another.
How to raise or lower your eDPI
eDPI is just DPI times sensitivity, so there are two levers, and they reach the same place. Halving your DPI or halving your sensitivity both halve your eDPI and double your cm/360 turn distance.
Which lever to pull
Adjust the in-game sensitivity first — it is finer-grained and avoids sensor quirks at unusual DPI values. Keep your DPI on a round number (400, 800, 1600) and tune the slider until the eDPI lands where you want it. Change one thing at a time so you can feel each step.
Going lower needs more desk
Dropping your eDPI lengthens your cm/360, so a full turn drags farther across the pad. Many low-sensitivity players run an eDPI under 400 and pair it with a large (45 cm or wider) mousepad so a 180° flick never runs out of room. If you keep lifting and repositioning mid-fight, your eDPI is too low for your pad.
eDPI vs cm/360: which to compare
These two numbers answer different questions, and using the wrong one is the most common sensitivity mistake. eDPI compares aim within a single game; cm/360 compares aim across different games.
Use eDPI inside one game
Within a game, everyone's sensitivity uses the same scale, so eDPI is a fair, instant comparison. If your CS2 teammate runs 800 eDPI and you run 1200, you know your aim is faster — no conversion needed.
Use cm/360 across games
Across games the scales differ, so the same eDPI feels different. cm/360 sidesteps that by measuring real desk distance, which is the same everywhere. To carry your aim from Valorant to CS2, match the cm/360 — not the eDPI and not the raw sensitivity.
| Question | Use | Why |
|---|---|---|
| Is my teammate's aim faster than mine (same game)? | eDPI | Same sensitivity scale — direct comparison |
| How do I keep my feel switching mice? | eDPI | Match the product even as DPI changes |
| How do I move my aim to a different game? | cm/360 | Real distance is identical across games |
| How much mousepad does a full turn need? | cm/360 | It is literally a distance in centimetres |
eDPI is a within-game shorthand; cm/360 is the cross-game, hardware-independent measure of how far your hand travels.
Gaming sensitivity definitions
How accurate is this eDPI calculator?
The eDPI math is exact. eDPI is simply DPI times your in-game sensitivity, so if those two values are right, the eDPI is right to the digit. The cm/360 conversion is exact too, given the right yaw: 914.4 divided by DPI, sensitivity, and the game's yaw is the precise turn distance.
The one place to be careful is the yaw. Most games use a single, fixed yaw, and the values here — 0.022 for Source-engine titles, 0.07 for Valorant, 0.0066 for Overwatch 2 — are the community-documented constants every major converter uses. A few games scale yaw with field of view or apply extra smoothing, so for those the cm/360 is a close estimate rather than an exact figure. The eDPI is always exact; treat cm/360 as accurate to within a fraction of a centimetre for the games listed.
Frequently asked questions about the free eDPI calculator
About this eDPI calculator
This eDPI calculator runs entirely in your browser. Nothing you type is sent anywhere — your DPI and sensitivity are multiplied locally, and the eDPI and cm/360 update instantly as you change them.
It is part of our collection of everyday calculators, and you can browse every tool we offer on the full calculators index.