Projector throw distance

Screen size plus throw ratio gives the lens-to-screen distance — check it before you mount.

Calculated in this browser. Nothing is sent anywhere.

Geometry only — offset, lens shift and zoom range are not modeled. Distance 0.1–50 m, diagonal 10–500 in.

How to use

  1. Enter the screen diagonal and aspect ratio.
  2. Enter the projector's throw ratio.
  3. Read the throw distance and screen dimensions.

What it supports

Diagonal 10–500 in, throw ratio 0.2–10, distance 0.1–50 m; ratios 16:9, 16:10, 4:3, 21:9. The throw distance counts from the lens, not the cabinet — check the projector's spec for the exact reference point.

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