Free spiral SVG

Fibonacci spiral SVG

Fibonacci spiral, drawn as a line — Fibonacci spiral. The preview is the SVG file itself.

Quarter circles drawn through squares with sides 1, 1, 2, 3, 5, 8, 13 and 21, each arc joining the last: the spiral of the Fibonacci numbers, without the squares.

Download SVG PNG DXF

Free for personal and commercial use, no sign-up. What you can do with it.

What is in the file

Size	100 × 63 mm (3.94 × 2.46 in), scales to any size
Pieces	One piece: it holds together when cut
Outlines to cut	1 outline
Cut length	496 mm at this size
Narrowest part	1.8 mm at this size
Nodes	129 curve and line segments

Measured from the file. PNG: 2,000 × 1,279 pixels, transparent. About the three file types.

How fine is it at your size?

Scaling a design scales its finest detail too. Here is this one at seven sizes, from 1 to 12 inches on its longer side, with how many copies fit a 12 × 12 inch sheet or mat.

Size, width × height	Narrowest part	Cut length	Fit on a 12 in sheet	Rule of thumb
1 × 0.63 in (25 × 16 mm)	0.46 mm	126 mm	140	Too fine for most machines
2 × 1.25 in (51 × 32 mm)	0.91 mm	252 mm	40	Fine detail: vinyl and paper only, weed with care
3 × 1.87 in (76 × 48 mm)	1.4 mm	378 mm	15	Vinyl, card and thin sheet
4 × 2.5 in (102 × 64 mm)	1.8 mm	504 mm	8	Vinyl, card and thin sheet
6 × 3.75 in (152 × 95 mm)	2.7 mm	756 mm	3	Vinyl, card and thin sheet
8 × 5 in (203 × 127 mm)	3.7 mm	1,008 mm	2	Any material, including 3 mm wood and acrylic
12 × 7.5 in (305 × 190 mm)	5.5 mm	1,512 mm	1	Any material, including 3 mm wood and acrylic

The narrowest part is the finest detail in the pattern. Below about half a millimetre it is too small to cut and may fill in when printed. How to open the file in Cricut, Silhouette and laser software.

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