Niger covers 1,185,111 km² km² on the new Equal Earth world map — 0.9%% of all land on Earth, making it the 25th largest country in the world and the 9th largest in Africa. At 17° latitude Mercator only inflates Niger by about 10%%, so the old and new maps largely agree on it — unlike the far north, where Mercator's stretch is dramatic.
For scale: Niger is roughly the same size as South Africa (1,221,609 km² km²).
You could fit 3 of Zimbabwe inside Niger.