Surface Dice similarity coefficient

How can I obtain Surface Dice Coefficient in 3D Slicer 5.3.0. ?

Dice coefficient is for volumes not surfaces. For surfaces you can calculate Hausdorff distance. Both are available in the Segment Comparison module in the SlicerRT extension.

FYI the forum has a search function, which is useful, as most basic questions have been already answered at least once, for example