The calculated distance (air line) between Leval-Trahegnies and Charleroi is approximately 10 miles respectively 16 kilometers.
By car or train, the actual journey to Charleroi is certainly longer, as only the direct route (as the crow flies) between Leval-Trahegnies and Charleroi has been calculated here.
Air line (approximately)
16 kilometers
8 nautical miles