Nigeria is the 2nd Largest African Economy in 2018- FgnNews

For 2018 the Largest Africa economy appears to be South Africa with a GDP of  $368bn.  The country only marginally edged out Nigeria, with estimated at $357bn over the same period. This is the case when applying the Nigerian naira’s market rate of 362 against the US dollar. If  you apply the official naira rate of 325 to the dollar, Nigeria beats South Africa but this official rate is not available to the majority of Nigerians.