Saudi Arabia covers 1,925,871 km² km² on the new Equal Earth world map — 1.4%% of all land on Earth, making it the 14th largest country in the world and the 4th largest in Asia. At 24° latitude Mercator only inflates Saudi Arabia by about 20%%, so the old and new maps largely agree on it — unlike the far north, where Mercator's stretch is dramatic.
For scale: Saudi Arabia is roughly the same size as Mexico (1,962,279 km² km²).
You could fit 3 of France inside Saudi Arabia.