The calculated distance (air line) between Melton Mowbray and Countesthorpe is approximately 18 miles respectively 29 kilometers.
By car or train, the actual journey to Countesthorpe is certainly longer, as only the direct route (as the crow flies) between Melton Mowbray and Countesthorpe has been calculated here.
Air line (approximately)
29 kilometers
16 nautical miles