The calculated distance (air line) between Chastre-Villeroux-Blanmont and Charleroi is approximately 16 miles respectively 26 kilometers.
By car or train, the actual journey to Charleroi is certainly longer, as only the direct route (as the crow flies) between Chastre-Villeroux-Blanmont and Charleroi has been calculated here.
Air line (approximately)
26 kilometers
14 nautical miles