Distance between Kulai and Sibolga is 535.8 km.
This distance is equal to 332.93 miles, and 289.12 nautical miles.
The distance line on map shows distance from Kulai to Sibolga between two cities.
If you travel with an airplane (which has average speed of 560 miles) between Kulai to Sibolga,
It takes 0.59 hours to arrive.