The calculated distance (air line) between Bình Long and Thủ Dầu Một is approximately 46 miles respectively 74 kilometers.
By car or train, the actual journey to Thủ Dầu Một is certainly longer, as only the direct route (as the crow flies) between Bình Long and Thủ Dầu Một has been calculated here.
Air line (approximately)
74 kilometers
40 nautical miles