The calculated distance (air line) between Bratislava - Vajnory and Komárno is approximately 52 miles respectively 84 kilometers.
By car or train, the actual journey to Komárno is certainly longer, as only the direct route (as the crow flies) between Bratislava - Vajnory and Komárno has been calculated here.
Air line (approximately)
84 kilometers
45 nautical miles