Aspect Ratio FOV Calculator

Calculate how field of view changes when switching between different aspect ratios.

Base Horizontal FOV

Base Aspect Ratio

Target Aspect Ratio

Scaling Method

105.39° H

58.72° V | More horizontal visibility

Base (16:9)

H: 90°V: 58.72°

Target (21:9)

H: 105.39°V: 58.72°

Horizontal FOV Change+15.39°

Vertical FOV Change+0.00°

Aspect Ratio Change+31.3%

Hor+ (Recommended)

Keeps vertical FOV, adds horizontal. You see more on the sides without losing anything.

Vert-

Keeps horizontal FOV, reduces vertical. You lose top/bottom visibility.

Stretch

No FOV change, image is stretched. Objects appear wider.