Object Dimensions is a geometry nodes setup that provides a clean, non-descructive way to showcase your object dimensions in 3D space. It's easy to use and highly customizable.

Key Features

• Universal Units: Switch seamlessly between Metric (mm, cm, m) and Imperial (inches, feet) systems or show both.
• Full Customization: Control arrow shapes, guide line thickness/length, font style, and assign unique materials to each axis.
• Flexible Layout: Adjust dimension lines to appear at specific angles to avoid overlap and ensure clarity.
• Single-Object Focus: Optimized for measuring individual objects. Note: This tool is not designed for handling multiple concurrent measurements on a single axis.

Requirenments

Since String to Curves node was updated in Blender 5.1 so it exposes font properties, that's the one I used. If there is enough interest for earlier Blender version, I'll get on it.