DFOV to VFOV (21:9)

1 Diagonal FOV = 0.393928 Vertical FOV · profile-dependent conversion · context: game/FOV profile

Direct Answer

1 Diagonal FOV equals 0.393928 Vertical FOV

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

For 45 Diagonal FOV, this profile returns 18.534199 Vertical FOV.

Converter Calculator

1 Diagonal FOV (degrees) =
0.393928 Vertical FOV (degrees)

Explanation

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

For Diagonal FOV to Vertical FOV, the active game/FOV profile determines the conversion constants applied to every value.

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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

Diagonal FOV (degrees)Vertical FOV (degrees)
45 18.534199
60 25.625605
75 33.636449
90 43.000875
100 50.295861
110 58.722041
120 68.610517
130 80.379751