The calculated distance (air line) between Hollogne-aux-Pierres and Mouscron is approximately 99 miles respectively 160 kilometers.
By car or train, the actual journey to Mouscron is certainly longer, as only the direct route (as the crow flies) between Hollogne-aux-Pierres and Mouscron has been calculated here.
Air line (approximately)
160 kilometers
86 nautical miles