The calculated distance (air line) between San Martino Buon Albergo and Genoa is approximately 127 miles respectively 204 kilometers.
By car or train, the actual journey to Genoa is certainly longer, as only the direct route (as the crow flies) between San Martino Buon Albergo and Genoa has been calculated here.
Air line (approximately)
204 kilometers
110 nautical miles