The calculated distance (air line) between Veľký Krtíš and Nové Zámky is approximately 57 miles respectively 92 kilometers.
By car or train, the actual journey to Nové Zámky is certainly longer, as only the direct route (as the crow flies) between Veľký Krtíš and Nové Zámky has been calculated here.
Air line (approximately)
92 kilometers
50 nautical miles