Sudan covers 1,863,027 km² km² on the new Equal Earth world map — 1.4%% of all land on Earth, making it the 16th largest country in the world and the 3rd largest in Africa. At 16° latitude Mercator only inflates Sudan by about 8%%, so the old and new maps largely agree on it — unlike the far north, where Mercator's stretch is dramatic.
For scale: Sudan is roughly the same size as Indonesia (1,872,242 km² km²).
You could fit 3 of Kenya inside Sudan.