I am working with some roads in London that I downloaded online. The roads are represented as lines like below:

enter image description here

How can I transform each road from a line into a polygon in QGIS? So that the roads look more like what we see here below (in orange):

enter image description here

  • What have you tried so far?
    – Taras
    Mar 13, 2022 at 20:29
  • Is this about looks or geometry?
    – Erik
    Mar 13, 2022 at 21:38
  • More so about looks as I will then import this into PowerBI. It doesn't have to be ultra perfect.
    – HamidBee
    Mar 13, 2022 at 21:39
  • If it's about appearance, not geometry, just change the symbology of the roads. You can set a wider stroke width, or use two strokes, one wider than the other to get the outline effect in your image
    – Llaves
    Mar 14, 2022 at 4:20
  • Unfortunately changing the thickness wouldn't work for my case. I plan to import it into Power BI and so it has to be a polygon. I know Vince mentioned the buffer tool. However when I try it I get another problem. I posted a new thread to that in my reply below.
    – HamidBee
    Mar 14, 2022 at 7:01

1 Answer 1


You can make polygons with the buffer tool.


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