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Gaming tools to measure and improve your aim
Convert your sensitivity between games, measure your reaction time and test your mouse, keyboard and monitor. Free, no sign-up, in your language.
- 36 tools in 5 categories
- Calculations use published formulas
- Tests run in your browser
Reaction & APM Tests
Test your response capability and hand-eye coordination with timed exercises.
Keyboard Tests: KPS & Ghosting
Evaluate your keypress speed, check each key is working and analyze simultaneous key response.
Sensitivity & eDPI Calculators
Transfer your aim settings between titles, analyze your effective DPI and fine-tune your setup to the millimeter.
Mouse Tests: CPS & Diagnostics
Full peripheral diagnosis: click speed, double-click response and the state of every button.
All tools
Frequently asked questions about our tools
Are all the tools free?
Yes, every single one. No account, no trial period, no cap on how many times you can run a test. Everything works straight in your browser, so there is nothing to install and nothing to pay for before you start measuring.
Do I need to download anything?
No. It all runs in the browser, which is convenient but also sets a limit: some hardware measurements, like true mouse latency, cannot be captured accurately from a web page. Whenever that applies, we say so inside the tool itself.
Do they work on mobile?
The calculators and the screen tests do. The mouse and keyboard tests need real peripherals and a stable surface, so they are built for desktop: on a touchscreen your numbers would not be comparable to anyone else's, which defeats the point.
Do you store my results?
No. Everything is calculated on your device and the numbers never leave it: nothing is sent to a server and nothing is tied to you. Close the tab and they are gone, so write down or screenshot anything you want to keep.
How often should I redo the tests?
A single run tells you almost nothing: sleep, caffeine and even the mouse you grabbed that day move the number. Do three or four attempts and take the average. Then always compare under the same conditions: same DPI, same time of day, same setup.
How is this site different from similar ones?
Three concrete things: the content exists in six languages with hreflang implemented properly, there are game-specific pages instead of one generic calculator, and we are upfront about what a browser can and cannot measure. No inflated precision claims.
Key sensitivity concepts
What is Yaw?
Yaw is the internal value each game uses to translate your sensitivity into actual movement: the number of degrees your view rotates per mouse count at sensitivity 1. Every game has its own yaw: CS2 uses 0.022, Valorant uses 0.07. That is why the same sensitivity number feels different across games. Our calculator uses these values to convert your sensitivity so the cm/360 stays the same.
What is eDPI?
eDPI (effective DPI) is your in-game sensitivity multiplied by your mouse DPI. For example, sensitivity 2 with 800 DPI = 1600 eDPI. It is the standard way to compare sensitivities between players of the same game, because two players with the same eDPI in that game turn exactly the same amount per centimetre of mouse movement, regardless of whether one uses 400 DPI with sensitivity 4 and the other 800 DPI with sensitivity 2. Between different games, compare cm/360 instead.
What is cm/360?
cm/360 tells you how many centimetres you need to move your mouse to make a full 360-degree turn in-game. It is the most intuitive measure of sensitivity: a cm/360 of 30 cm means you need to move your mouse 30 centimetres to complete a full rotation. There is no correct value: lower numbers mean faster turning, higher numbers mean finer control, and the right one depends on your game, your grip and the space on your desk.
Convert your sensitivity between games in seconds
When you switch games, keeping the same mouse sensitivity is key to preserving your muscle memory. But every game uses a different system: what is 0.5 in Valorant is 1.59 in CS2 and 5.3 in Overwatch 2. Our calculator does the conversion for you — free, accurate and instant. All you need is your current sensitivity, your DPI and the game you want to convert to.
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