The calculated distance (air line) between Acapulco de Juárez and Copalillo is approximately 100 miles respectively 161 kilometers.
By car or train, the actual journey to Copalillo is certainly longer, as only the direct route (as the crow flies) between Acapulco de Juárez and Copalillo has been calculated here.
Air line (approximately)
161 kilometers
87 nautical miles