Sri Lanka covers 66,046 km² km² on the new Equal Earth world map — 0.1%% of all land on Earth, making it the 123rd largest country in the world and the 35th largest in Asia. At 8° latitude Mercator only inflates Sri Lanka by about 2%%, so the old and new maps largely agree on it — unlike the far north, where Mercator's stretch is dramatic.
For scale: Sri Lanka is roughly the same size as Ireland (68,700 km² km²).