The calculated distance (air line) between Farrukhnagar and Mahendragarh is approximately 43 miles respectively 69 kilometers.
By car or train, the actual journey to Mahendragarh is certainly longer, as only the direct route (as the crow flies) between Farrukhnagar and Mahendragarh has been calculated here.
Air line (approximately)
69 kilometers
37 nautical miles