The calculated distance (air line) between Golub-Dobrzyń and Wrocław is approximately 163 miles respectively 263 kilometers.
By car or train, the actual journey to Wrocław is certainly longer, as only the direct route (as the crow flies) between Golub-Dobrzyń and Wrocław has been calculated here.
Air line (approximately)
263 kilometers
142 nautical miles