The calculated distance (air line) between Driebergen-Rijsenburg and Leeuwarden is approximately 82 miles respectively 133 kilometers.
By car or train, the actual journey to Leeuwarden is certainly longer, as only the direct route (as the crow flies) between Driebergen-Rijsenburg and Leeuwarden has been calculated here.
Air line (approximately)
133 kilometers
72 nautical miles