Template talk:Great circle distance

Compute for earth?
Hi,

This template would simplify lots of pages. However, could it be updated to return the same results as Great Circle Mapper (GCM)? For Perth to Brisbane it computes 3,613 km. This template returns (that is,  km less). GCM’s FAQs say distances are computed for elipsoid not sphere. Betterkeks (talk) 00:55, 10 June 2019 (UTC)