The calculated distance (air line) between Dioulabougou-Boléko and Gagnoa is approximately 76 miles respectively 122 kilometers.
By car or train, the actual journey to Gagnoa is certainly longer, as only the direct route (as the crow flies) between Dioulabougou-Boléko and Gagnoa has been calculated here.
Air line (approximately)
122 kilometers
66 nautical miles