Compute the centroid (centre of mass) of any STL/OBJ/GLB mesh assuming uniform density. Useful for balance, animation pivots, and engineering analysis.
Upload your 3D model
We compute the volume-weighted centroid of every tetrahedron
Get the centre of mass as XYZ coordinates
0 bytes uploaded. Centre of Mass Finder runs entirely in your browser using three.js and WebGL. Your meshes never leave your device.
True centre of mass assuming uniform density. The geometric centre (bounding box midpoint) is different — use the Bounding Box tool for that instead.
For walking robots, drones, balance toys, and prop sculpts, the centre of mass determines stability. For animation rigs, it's the natural pivot for body rotation.
Yes — the JSON output includes the position. Paste it into Blender's transform panel or your DCC tool's empty object position.
Compute the exact volume of any STL mesh in cm³ and estimate filament or metal weight for PLA, ABS, PETG, resin and 8 metals — with an infill setting for realistic 3D-print weights. Watertight-mesh accurate, runs in your browser. Formula, density table and edge cases below.
Open toolCompute the X/Y/Z bounding box of any STL, OBJ, or GLB mesh. Get exact print dimensions in mm — useful for fitting models to your printer bed.
Open toolTest 6 canonical orientations and rank by support area, footprint, and overhang. Find the print-friendly pose without manual rotation. Browser-based.
Open tool