Mouse Sensitivity Calculator (eDPI + cm/360)
Use this tool to calculate your eDPI, inches per 360, and cm per 360. You can also enter a target cm/360 to find the sensitivity you need.
What is a mouse calculator?
A mouse calculator helps you translate raw hardware and game values into practical sensitivity numbers you can actually use. Instead of guessing what a setting “feels like,” you can calculate objective metrics like eDPI and cm/360, then tune with confidence.
This is especially useful when:
- You switch between games and want consistent aim.
- You buy a new mouse and need to match old settings.
- You are trying to improve precision for FPS, tactical shooters, or battle royale games.
Key terms you should know
DPI (Dots Per Inch)
DPI is your mouse’s sensitivity at the hardware level. Higher DPI means the cursor moves farther for the same physical hand movement.
In-game sensitivity
This is a software multiplier inside a specific game. Two players with the same DPI can still have totally different aim speeds if this value differs.
eDPI
eDPI = DPI × In-game Sensitivity. It gives you a quick way to compare settings between players using the same game engine and similar yaw behavior.
cm/360
Centimeters per 360 is the physical distance required to rotate your character one full turn. This is one of the most practical sensitivity metrics because it directly maps to your hand movement.
How the formulas work
- eDPI = DPI × Sensitivity
- Inches per 360 = 360 ÷ (DPI × Sensitivity × Yaw)
- cm per 360 = Inches per 360 × 2.54
- Sensitivity from target cm/360 = 360 ÷ ((Target cm/360 ÷ 2.54) × DPI × Yaw)
How to use this mouse calculator effectively
1) Start with your current settings
Enter your real DPI and in-game sensitivity first. This gives you a baseline so your changes stay controlled and measurable.
2) Choose a realistic target
If your current sensitivity feels too fast, try increasing your target cm/360 (for example, from 25 to 35). If it feels too slow, reduce it slightly.
3) Keep one variable stable
Most players keep DPI constant (such as 800 or 1600) and tune sensitivity. This makes training more consistent over time.
Common mistakes to avoid
- Changing DPI and sensitivity at the same time.
- Ignoring game-specific yaw values.
- Testing settings for only a few minutes before switching again.
- Copying a pro player’s numbers without considering your mousepad size and grip style.
Practical setup tips
Once you find a workable sensitivity, focus on consistency:
- Use the same polling rate and mousepad daily.
- Disable random acceleration settings unless your workflow requires them.
- Warm up with 10–15 minutes of routine aim drills.
- Track results weekly, not match-by-match.
Final thoughts
A good mouse sensitivity setup is less about chasing the “perfect” number and more about creating stable conditions for improvement. Use this mouse calculator to get objective values, set a clear baseline, and then train consistently. Small, measured adjustments will beat constant random tweaking every time.