Overlay size calculator

Enter your OBS canvas and overlay size to get the exact Browser Source dimensions and safe margins.

Canvas width

Canvas height

Overlay width

Overlay height

Result

Scale: 100.0%

Browser Source size: 1920 × 1080

Safe margin (5%): 96 px horizontal, 54 px vertical

Set the Browser Source to the canvas size (e.g. 1920×1080) and let the overlay scale inside it.