The calculated distance (air line) between Sint-Denijs-Westrem and Roeselare is approximately 24 miles respectively 39 kilometers.
By car or train, the actual journey to Roeselare is certainly longer, as only the direct route (as the crow flies) between Sint-Denijs-Westrem and Roeselare has been calculated here.
Air line (approximately)
39 kilometers
21 nautical miles