Left 4 Dead 2 to Call of Duty: Modern Warfare III sensitivity converter
Convert your Left 4 Dead 2 sensitivity to Call of Duty: Modern Warfare III instantly. Same hand motion, perfect muscle memory across both games.
Why Left 4 Dead 2 sens doesn't match Call of Duty: Modern Warfare III
At 0.4 sens on 800 DPI, Left 4 Dead 2 sweeps 129.89 cm across a full 360°. To reproduce that exact arm motion in Call of Duty: Modern Warfare III, you need sens 1.3333 — about 3.33× your Left 4 Dead 2 number. Nothing changed except Call of Duty: Modern Warfare III's yaw of 0.0066 vs Left 4 Dead 2's 0.022; the centimeters of mouse travel stay the same.
- Left 4 Dead 2 · Yaw
- 0.022
- Call of Duty: Modern Warfare III · Yaw
- 0.0066
- Left 4 Dead 2 · Default FOV
- 90
- Call of Duty: Modern Warfare III · Default FOV
- 103
How to apply the converted sensitivity in Call of Duty: Modern Warfare III
Open Call of Duty: Modern Warfare III's settings, paste the converted sensitivity into the sens field and keep your 800 DPI if that matches how you play Left 4 Dead 2. Run a 360° check on a practice map: the mouse sweep should cover roughly 129.89 cm on your pad — the same distance as in Left 4 Dead 2. Only start tuning if the sweep feels off, never before the 360° check.
Common mistakes when converting Left 4 Dead 2 to Call of Duty: Modern Warfare III
- Copying the sens without matching DPI
A converted Left 4 Dead 2-to-Call of Duty: Modern Warfare III number is tied to the DPI you used during conversion. If your Call of Duty: Modern Warfare III mouse profile runs a different DPI, the math no longer holds — use Sens Converter's 'different DPI' toggle instead of eyeballing.
- Trusting eDPI across engines
Matching eDPI between Left 4 Dead 2 and Call of Duty: Modern Warfare III does not give matching turn speed, because their yaws are 0.022 and 0.0066. Always compare cm/360° (or in/360°), not eDPI, when swapping games.
- Ignoring scoped and ADS overrides
Left 4 Dead 2 and Call of Duty: Modern Warfare III each apply their own scoped / ADS multiplier on top of the base sensitivity. Converting the base is step one — confirm the per-zoom multiplier in Call of Duty: Modern Warfare III separately, otherwise scoped aim will feel wrong even with a perfect hipfire match.
Left 4 Dead 2 → Call of Duty: Modern Warfare III FAQ
Why is my converted Call of Duty: Modern Warfare III sens different from my Left 4 Dead 2 number?+
Call of Duty: Modern Warfare III has a yaw of 0.0066 compared to Left 4 Dead 2's 0.022. Their ratio is about 3.33×, so Sens Converter multiplies your Left 4 Dead 2 sens by that factor to keep cm/360° identical. The raw number looks different, but the arm motion is the same.
Should I keep the same DPI in Left 4 Dead 2 and Call of Duty: Modern Warfare III?+
Yes, when possible. Keeping DPI identical means only the in-game multiplier changes, which is the cleanest switch. If you run different DPI in Call of Duty: Modern Warfare III, enable 'different DPI' in the converter and it absorbs the extra math.
How many decimals should I use in Call of Duty: Modern Warfare III?+
Call of Duty: Modern Warfare III accepts at least 3 decimals; 4-6 is common. Sens Converter outputs enough precision that rounding to 3 decimals keeps the 360° error below one millimetre on a typical 800 DPI setup.
Does FOV affect Left 4 Dead 2 to Call of Duty: Modern Warfare III conversion?+
For the base sensitivity, no — sens is independent of FOV in both engines. If you use a 0% MonitorDistance or similar scaling mode in either game, convert at the FOV you actually run in-game.