TECHMINS TOOL
3D Printing Scale Converter
Convert model scales, resize STL files by percentage, calculate model dimensions from real-world measurements and estimate how scaling changes volume and material use.
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Choose what you want to calculate
Switch modes at any time. Results update instantly.
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Scale conversion
Example: converting a 1:16 model to 1:10 requires 160% scaling.
Quick target:
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Resize by dimensions
Use this when you know how large the STL is now and exactly how large it should become.
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Real object to model size
Enter a real-world dimension and choose the model scale you want to print.
Quick scale:
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Detect the model scale
Useful when you know one dimension of the real object and the matching dimension of the model.
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3D-printing notes
Uniform XYZ scaling affects more than just length.
Linear dimensionschange directly with the scale percentage.
Surface areachanges approximately with scale².
Volume & filamentchange approximately with scale³ for the same geometry and settings.
Wall thicknessalso scales, so check minimum printable features after resizing.