The calculated distance (air line) between Nizao and Concepción de La Vega is approximately 71 miles respectively 114 kilometers.
By car or train, the actual journey to Concepción de La Vega is certainly longer, as only the direct route (as the crow flies) between Nizao and Concepción de La Vega has been calculated here.
Air line (approximately)
114 kilometers
61 nautical miles