The calculated distance (air line) between Seoni Mālwa and Harda Khās is approximately 25 miles respectively 40 kilometers.
By car or train, the actual journey to Harda Khās is certainly longer, as only the direct route (as the crow flies) between Seoni Mālwa and Harda Khās has been calculated here.
Air line (approximately)
40 kilometers
22 nautical miles