The calculated distance (air line) between Yishun New Town and Pasir Ris New Town is approximately 9 miles respectively 15 kilometers.
By car or train, the actual journey to Pasir Ris New Town is certainly longer, as only the direct route (as the crow flies) between Yishun New Town and Pasir Ris New Town has been calculated here.
Air line (approximately)
15 kilometers
8 nautical miles