[Qgis-user] Diameter of buffers

[Herbert Faber]

Dear all,
When I put ring buffers arond dot objects, the diameter doesn't come out as I would expect.

For instance, when I try to make ring buffer with a distance of 100 meter and 25 segments around a dot object. The diameter of the buffer turns out to be approx 126 m when I measure it with the ruler tool.

What am I doing wrong?

I work with OSM Standard map in EPSG:3857 - WGS 84 / Pseudo-Mercator - projection and so are my shape files.

Best regards,
Herbert Faber
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