Distance between Mariahu and Oyem is 8031.31 km.
This distance is equal to 4990.42 miles, and 4333.68 nautical miles.
The distance line on map shows distance from Mariahu to Oyem between two cities.
If you travel with an airplane (which has average speed of 560 miles) between Mariahu to Oyem,
It takes 8.91 hours to arrive.