Change your field of view and your aim feel changes with it — unless you compensate. This tool gives you the sensitivity multiplier that keeps a chosen monitor-distance match constant when you move from one FOV to another (the same math your game uses for zoom/scoped sensitivity). Pick your old FOV, your new FOV, your match percentage, and it returns the factor to multiply your sensitivity by.
The honest headline most players miss: at 0% monitor-distance (raw / 360-distance), changing FOV does not change how far a given hand movement turns you. That is why nearly every pro uses 0% — your muscle memory for a full 180 spin survives any FOV or zoom change. The multiplier only becomes interesting at higher match percentages, or when a game forces FOV-scaled zoom sensitivity. Everything runs locally in your browser.
1.00 — no change. At 100% (focal-length) match the same change returns roughly 1.26: a wider view spreads pixels further from center, so matching the edge feel calls for a slightly higher sensitivity. Both are correct; they answer different questions.Question 1: "I want my 360 to stay the same." Use 0% match. The multiplier is always 1.00 regardless of FOV. Your full-rotation hand sweep is identical, which is what keeps flicks and spins consistent. This is the right default for almost everyone.
Question 2: "I want the same tracking feel at the edge of my screen / when I scope in." Use 100% match (focal-length). Now the multiplier shifts with FOV, because matching the visual speed at the screen edge requires changing the mouse speed as the view widens or narrows. This is the math behind well-implemented scoped/zoom sensitivity.
At 0% the factor is identically 1. At 100% it is the ratio of the tangents of the half-FOVs: mult = tan(newFOV/2) / tan(oldFOV/2). A 50% match blends the two by averaging the underlying scaling. So a wider new FOV at 100% match gives a multiplier above 1 (speed up), and a narrower new FOV — like scoping or zooming in — gives a multiplier below 1 (slow down), which is exactly the zoom-sensitivity coefficient that keeps a scoped view from feeling jarringly fast.
When you ADS or scope, your FOV drops sharply. At the raw 0% setting your scoped aim will feel faster on screen because the same degrees of turn now cover a narrower view. Many players hate that and want the scoped feel to match hipfire at the screen edge — that is what a zoom-sensitivity coefficient does, and because the scoped FOV is narrower it works out to a multiplier below 1 (it slows you down). Plug your hipfire FOV as "old" and your scoped FOV as "new" at 100% match to see the coefficient that keeps the edge speed matched. Our crosshair settings guide and the full sensitivity converter pair well with this.
At 0% (raw / 360-distance) match, no — your 360 distance is FOV-independent. If you want matched on-screen feel at the edge, or your game scales with FOV, then yes. This tool shows the multiplier for a chosen match.
A way to keep aiming consistent across FOVs. 0% keeps the full 360 sweep identical; 100% matches the feel at the screen edge. Most pros use 0% so muscle memory never breaks.
Scoping narrows FOV, so the same movement covers more visual distance and feels faster unless a coefficient compensates. The 100% multiplier here finds that coefficient.
Not for raw precision — wider FOV shrinks enemies, slightly harder to track, but gives more awareness. Pick one, lock it, train at it.