Left 4 Dead 2 to 3D Aim Trainer sensitivity converter
Convert your Left 4 Dead 2 sensitivity to 3D Aim Trainer instantly. Same hand motion, perfect muscle memory across both games.
Why Left 4 Dead 2 sens doesn't match 3D Aim Trainer
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 3D Aim Trainer, you need sens 0.4 — about 1.00× your Left 4 Dead 2 number. Nothing changed except 3D Aim Trainer's yaw of 0.022 vs Left 4 Dead 2's 0.022; the centimeters of mouse travel stay the same.
- Left 4 Dead 2 · Yaw
- 0.022
- 3D Aim Trainer · Yaw
- 0.022
- Left 4 Dead 2 · Default FOV
- 90
- 3D Aim Trainer · Default FOV
- 103
How to apply the converted sensitivity in 3D Aim Trainer
Open 3D Aim Trainer'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 3D Aim Trainer
- Copying the sens without matching DPI
A converted Left 4 Dead 2-to-3D Aim Trainer number is tied to the DPI you used during conversion. If your 3D Aim Trainer 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 3D Aim Trainer does not give matching turn speed, because their yaws are 0.022 and 0.022. Always compare cm/360° (or in/360°), not eDPI, when swapping games.
- Ignoring scoped and ADS overrides
Left 4 Dead 2 and 3D Aim Trainer 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 3D Aim Trainer separately, otherwise scoped aim will feel wrong even with a perfect hipfire match.
Left 4 Dead 2 → 3D Aim Trainer FAQ
Why is my converted 3D Aim Trainer sens different from my Left 4 Dead 2 number?+
3D Aim Trainer has a yaw of 0.022 compared to Left 4 Dead 2's 0.022. Their ratio is about 1.00×, 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 3D Aim Trainer?+
Yes, when possible. Keeping DPI identical means only the in-game multiplier changes, which is the cleanest switch. If you run different DPI in 3D Aim Trainer, enable 'different DPI' in the converter and it absorbs the extra math.
How many decimals should I use in 3D Aim Trainer?+
3D Aim Trainer 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 3D Aim Trainer 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.