The village of Klasov, with its cadastral area of more than 12 km2, lies in the central part of the Žitavská Uplands in the valley of the Babindolský brook 4.5 km northwest of the town of Vráble.
The village of Klasov, with its cadastral area of more than 12 km2, lies in the central part of the Žitavská Uplands in the valley of the Babindolský brook 4.5 km northwest of the town of Vráble.