Namibia covers 824,750 km² km² on the new Equal Earth world map — 0.6%% of all land on Earth, making it the 35th largest country in the world and the 15th largest in Africa. At 22° latitude Mercator only inflates Namibia by about 16%%, so the old and new maps largely agree on it — unlike the far north, where Mercator's stretch is dramatic.
For scale: Namibia is roughly the same size as Mozambique (790,643 km² km²).
You could fit 3 of New Zealand inside Namibia.