I am working on a project that focuses on Scotland. When I use the print composer to add a scalebar the scale is wrong. It shows 50 km for a distance that is probably around 200 km. Following the advice in this forum, I changed my project projection to a UTM one, in my case, UTM zone 30 WGS 84 which should be suitable for Scotland. The on the fly (OTF) box is ticked as well. But I still have the same issue with the scalebar. I would be very thankful for any suggestions.

I am using QGIS 2.8.3 Wien

Sorry I can not find the post I read early, but it suggested to switch the project projection to UTM to ensure that the scale works properly.

  • Welcome to GIS SE! I added the qgis tag based on your mention of print composer. If this isn't correct, please update your tags as necessary. Also, what version of QGIS are you using? Since you said you followed advice found on here already, feel free to include the links to those questions in your question. – ycartwhelen Aug 6 '19 at 17:20
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    Each UTM zone extends from the equator almost all the way to the north pole. Horizontal distance varies greatly within this extent. Try a more localized CRS specifically designed for Great Britain, such as the British National Grid. – csk Aug 6 '19 at 18:41
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    2.8.3 is ANCIENT. Don't use it! Upgrade to a recent version and you'll run into much less issues. – ndawson Aug 7 '19 at 1:05
  • The Ordnance Survey CRS (EPSG:27700) would be the one to use right enough, but what is the CRS of your data? – nhopton Aug 7 '19 at 12:53
  • I am using 2.8.3 cause I am working with a GIS book especially for my field of study that is based on this QGIS version. – Tina Aug 7 '19 at 21:12

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