I'm going through the QGIS training Manual and I got stuck trying to set up the snapping unit to map units at the Forestry Application 14.3 Digitizing Forest Stands. The manual indicates to set the snapping units in Map units but the only available options are meters and pixels.

I am using QGIS 3.22.1.

  • Which CRS are you working with?
    – Erik
    Commented Jan 12, 2022 at 12:33
  • As indicated by the manual 3067
    – Erick
    Commented Jan 12, 2022 at 12:34
  • epsg.io/3067 - UoM is m.
    – Erik
    Commented Jan 12, 2022 at 12:48
  • In my experience it is easier to use a radius of 10-12 pixels. This works with layers in projected coordinate systems (UTM for example) or latitude longitude ones (like EPSG 4326) Commented Jan 12, 2022 at 14:12
  • The CRS indicated at the Manual 3067
    – Erick
    Commented Jan 12, 2022 at 14:39

1 Answer 1


This setting is dependent on the map unit of the project CRS, not of the layer CRS.

Here the project is in 3857, map unit is meter

enter image description here

and now the project CRS is in 4326, map unit is degree

enter image description here

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