DPI Analyzer
Calculate your mouse with the best DPI Analyzer tool 100% free
| Configured DPI | Target distance | Units |
|---|---|---|
| Axis | Windows Pointer Speed |
|---|---|
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Actual DPI
Target counts
Actual counts
Deviation
Measurement Line
For Gamers
Proper DPI settings can mean the difference between victory and defeat. Lower DPI (400-800) offers precision for FPS aiming, while higher DPI (1600+) benefits fast-paced games.
For Designers
Graphic professionals need consistent cursor movement for pixel-perfect editing. The ideal DPI range (800-1200) balances speed and precision for creative work.
What is the Mousely DPI Analyzer?
The DPI Analyzer on Mousely is a free online DPI tester that measures the true DPI (dots per inch) of any mouse. Whether you’re an FPS gamer tuning aim, a designer seeking pixel-level control, or just curious about your mouse hardware, this dpi analyzer delivers accurate readings, explains measurement errors, and helps you apply the result directly to your game or productivity setup.
Read more about DPI (What is DPI) on our guides.
How the Mousely DPI Analyzer works
Step-by-step DPI test (fast & pro modes)
- Place a printed ruler or measuring tape on your mousepad. (Download our printable ruler: [Printable Ruler PDF])
- Choose a test unit (inch / cm / mm) and distance (longer distances → higher accuracy).
- Select Fast Test (single run) or Pro Test (5 runs + average + standard deviation).
- Click inside the test area and hold any mouse button. Move your mouse in a straight line the physical distance and then release. The dpi analyzer automatically calculates pixels moved ÷ inches moved = DPI.
- The tool shows: Measured DPI, Deviation (%), Pixels moved, Target counts, and Trial statistics.
Tip: Run the Pro Test to see confidence intervals. A single reading is fine, but Mousely’s dpi analyzer pro mode tells you whether you should trust the number.
Why Mousely’s DPI Analyzer is better!
- Error diagnostics: We show a stepwise checklist for common error sources (accelerations, pointer speed, browser zoom, multi-monitor edges, surface variations) and auto-detect suspicious conditions. Competitors often only say “disable acceleration”; Mousely’s dpi analyzer explains how to verify it.
- Statistical results: Our dpi analyzer pro mode runs multiple trials, reports average DPI, standard deviation, and a confidence estimate — so you can tell if your mouse’s DPI is consistent.
- Axis testing: Test X and Y separately to detect sensor non-linearity — our dpi analyzer shows per-axis DPI.
- Printable & mobile UX: Minimal UI, mobile-friendly ruler, and downloadable step-by-step guide for printing.
Integration: One-click send to eDPI Calculator and Polling Rate Tester on Mousely so users immediately apply results to in-game settings.
What you should know about DPI testing
DPI vs True DPI vs Set DPI
- Set DPI: The number you set in mouse software or with the DPI button.
- True DPI: The actual sensitivity measured by the dpi analyzer. Due to sensor calibration differences, true DPI can differ slightly from the set DPI. Use our dpi analyzer to confirm.
eDPI and Why It’s Useful
eDPI = DPI × In-game sensitivity. After you get a stable DPI with the Mousely dpi analyzer, plug the number into our eDPI calculator to find the best in-game sensitivity mapping.
Polling rate, lift-off, and sensor accuracy
Polling rate changes how frequently the mouse reports to the PC; it can affect fine measurement jitter. Lift-off distance may cause early tracking loss mid-test. Our dpi analyzer explains how to stabilize polling rate and how to test on multiple surfaces.
Quick checklist: Get repeatable DPI results
- Disable OS pointer acceleration (or enable raw input where available).
- Set display scaling and browser zoom to 100%.
- Use a flat, uniform surface (paper on mousepad recommended).
- If readings jump, test axis separately and check lift-off distance.
Features of Mousely’s DPI Analyzer
- Fast Test and Pro Test (auto average & steady) — dpi analyzer beast mode.
- Per-axis measurement (X+, X-, Y+, Y-) — detect sensor asymmetry.
- Printable ruler PDF and mobile ruler overlay for phone measurement.
- Export results (CSV) and Copy to clipboard button.
- Direct send to eDPI calculator or Polling Rate Tester.
- Visual diagnostics (warns if your cursor hits monitor edge or browser zoom ≠100%).
- Accessibility: keyboard start/stop and large targets for low-vision users.
How to interpret your DPI Analyzer result?
- If deviation < 1% → your sensor is consistent. Use the measured DPI.
- If deviation 1–5% → acceptable; take multiple averages.
- If deviation > 5% → check surface, lift-off, or OS acceleration and re-test.
Frequently Asked Questions (FAQs)
A dpi analyzer is an online tool that measures your mouse’s true DPI by dividing the pixels moved by the physical inches (or cm) you move the mouse. Mousely’s DPI analyzer uses browser tracking to compute accurate DPI and offers a pro mode to average multiple trials.
For most precise testing, disable Enhance Pointer Precision. Our dpi analyzer includes diagnostics to detect pointer acceleration and will alert you.
Not necessarily. Variation usually comes from surface, inconsistent straight lines, lift-off, or OS scaling. Use our printable ruler and the pro mode to get repeatable results.
Ideally, the deviation between your configured and actual DPI should be less than 5%. Higher deviations may indicate sensor inconsistency, software misconfiguration, or hardware wear.
Not necessarily. A high DPI sensor can still be inaccurate. Sensor stability, consistency, and tracking quality matter more than a high number.
Why Choose Us
Our Guides
| Features | Our | Others |
|---|---|---|
| Multi-Axis Measurement | ✓ | ✓ |
| 240Hz+ Monitor Support | ✓ | ✗ |
| Wireless Mouse Accuracy | ✓ | ✗ |
| Linux Compatibility | ✓ | ✗ |
| Error Correction Algorithms | ✓ | ✗ |
| Multi-Monitor Support | ✓ | ✓ |
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