HFOV to VFOV (21:9)

1 Horizontal FOV = 0.42858 Vertical FOV · profile-dependent conversion · context: game/FOV profile

Direct Answer

1 Horizontal FOV equals 0.42858 Vertical FOV

This result depends on the selected profile context: game/FOV profile.

For 45 Horizontal FOV, this profile returns 20.132571 Vertical FOV.

Converter Calculator

1 Horizontal FOV (degrees) =
0.42858 Vertical FOV (degrees)

Explanation

Formula context fixed at 21:9. HFOV converts to VFOV using trig relations on the half-angle tangent model.

Horizontal FOV to Vertical FOV is profile-bound here: the selected game/FOV profile controls the mapping used by calculator and reference table.

Read more

Keep the same profile in both directions to avoid mixing lookup systems that use different size mappings.

Method & Reference (Verified)

  • Method basis: profile-bound mapping; constants depend on the selected profile encoded in the route.
  • Profile reference: game/FOV profile.
  • Consistency rule: keep the same profile in mirror direction to avoid mixing incompatible mappings.

Common Conversion Values

Horizontal FOV (degrees)Vertical FOV (degrees)
45 20.132571
60 27.795772
75 36.407358
90 46.397181
100 54.111486
110 62.938552
120 73.173551
130 85.17064