The calculated distance (air line) between Paya Lebar and Sungai Simpang is approximately 7 miles respectively 12 kilometers.
By car or train, the actual journey to Sungai Simpang is certainly longer, as only the direct route (as the crow flies) between Paya Lebar and Sungai Simpang has been calculated here.
Air line (approximately)
12 kilometers
6 nautical miles