Mouse DPI Guides
Clear, practical guides to mouse DPI, CPI, sensitivity and eDPI. Use them alongside the free DPI analyzer to check your own setup.
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What Is Mouse DPI?Learn what mouse DPI means, how it changes cursor speed, what a good DPI is, and how to check yours with a free online DPI analyzer.How to Check Mouse DPIThree ways to check your mouse DPI: manufacturer software, a physical ruler test, and a free online DPI analyzer. Includes accuracy tips.How to Change Mouse DPIChange your mouse DPI with the DPI button or manufacturer software, understand on-board profiles, and verify the new setting afterwards.Mouse DPI FAQAnswers to the most common mouse DPI questions: accuracy of online analyzers, DPI vs sensitivity, good gaming DPI, acceleration and more.
Understand the terms
DPI vs CPIDPI and CPI are used interchangeably for mice. Learn where each term comes from, why sensor makers prefer CPI, and which one to use.DPI vs SensitivityDPI is a hardware setting and sensitivity is a software multiplier. See how they combine, why eDPI matters, and how to tune both.What Is eDPI?eDPI (effective DPI) is mouse DPI multiplied by in-game sensitivity. See the formula, worked examples, cm/360, and when eDPI misleads.Polling Rate vs DPIPolling rate (Hz) and DPI measure different things. Learn how each affects your mouse, what 1000 Hz and 8000 Hz mean, and how to test both.
Gaming sensitivity
Best DPI for GamingThere is no single best gaming DPI. Learn typical ranges, how DPI and sensitivity combine, and how to test a setting that suits you.Valorant DPI GuideCalculate your Valorant eDPI and cm/360, convert sensitivity from CS2, and choose a DPI that gives you control. Worked examples included.CS2 DPI GuideWork out your CS2 eDPI and cm/360, compare 400 vs 800 DPI, and tune sensitivity gradually. Includes worked examples and Valorant conversion.Fortnite DPI GuideHow Fortnite sensitivity works with mouse DPI: X and Y percentages, targeting and scope multipliers, and a safe way to tune your setup.Minecraft DPI GuideHow mouse DPI and Minecraft sensitivity work together, why the slider is not linear, and how to fix a mouse that feels inconsistent.
By operating system
Mouse DPI on WindowsWindows cannot show hardware DPI. Learn what pointer speed does, how to disable acceleration, and how to measure your mouse DPI on Windows.Mouse DPI on MacmacOS does not display mouse DPI. Learn how tracking speed differs from DPI, how to check DPI on a Mac, and how to get consistent results.
Free mouse tools
Mouse TesterFree online mouse tester. See live pointer position, every button press, wheel scroll and a rolling event log to find stuck or unresponsive inputs.Button TesterFree mouse button tester. Check that left, middle, right, back and forward buttons register presses, with each button lighting up when detected.Double-Click TesterFree double-click tester. Measure the time between clicks and flag rapid pairs under a chosen threshold to spot a worn or misfiring mouse switch.CPS TesterFree CPS test. Measure your clicks per second over 1, 5 or 10 seconds and compare single-finger clicking with jitter or butterfly techniques.Sensitivity ToolInteractive demo showing how a sensitivity multiplier scales pointer movement. A grey dot follows your pointer, a cyan dot follows it scaled.Scroll TesterFree mouse wheel test. Track scroll direction, running totals and reversals to find a skipping, jumping or reversing scroll wheel.Movement TesterFree mouse movement test. Trail your cursor and compare path length with straight-line distance to see how smooth your pointer motion is.Jitter TestFree mouse jitter test. Hold the pointer still for 3 to 8 seconds and measure RMS deviation to see how steady your pointer is.Pointer Event FrequencyEstimate how many pointer move events per second your browser receives. A browser-based lower bound for mouse polling rate in Hz.Tracking TestFree mouse tracking test. Follow a moving target for 8 to 20 seconds and measure your average and maximum deviation.Accuracy TestFree mouse accuracy test. Click targets as they appear, with 10, 20 or 30 targets, and see your hit rate and average time per target.Reaction Time TestFree reaction time test for mouse users. Click the instant the box changes colour, with false-start detection, average and median results.eDPI CalculatorFree eDPI calculator. Multiply DPI by sensitivity, solve for the DPI needed for a target eDPI, and compare two setups side by side.cm/360 CalculatorFree cm/360 calculator. Convert DPI, sensitivity and yaw into the physical distance for a 360 degree turn, or solve for sensitivity from a target.