Did you know that you can dimension the length of a spline in SOLIDWORKS? It's just as easy to drop a Smart Dimension onto the spline as it is a line.
How to Dimension While Sketching in SOLIDWORKS
How to Use SolidWorks Spline Sketch Tool in SolidWorks CAD
What are Splines in Solidworks?
SOLIDWORKS: Raiders of the Lost Arc-Length for 3D Splines
Introduction to Sketching
What are Splines in Solidworks?
How to Use SolidWorks Smart Dimension Sketching Tutorial for Beginners
Can anyone tell me why some of my dimensions are still blue? : r
SolidWorks Tutorial: Modeling and Inspection Masterclass for 3D