SVG Scale Converter (PX ↔ MM ↔ CM ↔ Inch)

Convert SVG dimensions between pixels, millimetres, centimetres, and inches. Rescale SVG files to match real-world dimensions for CNC and printing.

Drop SVG template here or click to browse

Scale viewports, join open loops, and reorder paths

Scaling & Manufacturing Options

Scale Multiplier Factor1.50x

Auto-repair: Close open loops/paths (tolerance < 5px)

Optimize G-code travel path sequence (Greedy TSP search)

Scaled Outlines Preview

How to Use

Upload SVG

Upload your SVG file.

Set source and target units

Select source DPI and target unit (mm, cm, inch, or px).

Download rescaled SVG

Download the SVG with updated viewBox and dimensions.

SVG Scale and Unit Conversion

SVG files use an internal coordinate system measured in user units. The relationship between those units and real-world measurements (mm, cm, inches) depends on the DPI setting of the tool that created the SVG. This converter lets you specify the source DPI and target unit to produce an SVG with correctly scaled real-world dimensions.

Real-World Examples & Use Cases

CNC Rescaling

Convert an SVG designed at 96 DPI to a DXF where 1 unit = 1 mm for accurate CNC cutting.

Frequently Asked Questions

What DPI should web SVGs use?▼

Web browsers use 96 DPI. Inkscape uses 96 DPI from version 0.92 onwards. Adobe Illustrator defaults to 72 DPI.

Does rescaling affect visual quality?▼

No. SVG is resolution-independent. Rescaling only changes the coordinate system, not the rendering quality.

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