Scaling landscape from hieghtmap

I’ve created a hieghtmap from a LIDAR file thats 2.88 km x 1.45 km.

It’s a png 2556 x 1284 pixels

I’ve imported this but I’m totally unsure of how it’s scaled and creating a patch of river looked like it’s too small.

How do I scale the landscape so the physics work 1:1 so 1 m of physics is 1m in the level.

Thanks

Well, I’ve actually found this one myself in a forum thread Heightmap is small - Platform & Builds - Unreal Engine Forums

“The XY scale of the landscape. Default is 100x100, which means that each heightmap pixel is 100x100 centimeters large in game world.”