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I need to calculate the length of a line in (KM) in QGIS using the British National Grid as the Projection.

Can somebody explain to me how to do this?

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marked as duplicate by JGH, csk, PolyGeo Jul 10 '18 at 19:39

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  • This question isn't an exact duplicate of "Finding line length while editing in QGIS", but the answers to that question also answer this one. – csk Jul 10 '18 at 17:14
  • OSGB is in meters. so sum up the lengths and divide by 1000 for km. – Ian Turton Jul 10 '18 at 19:29

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