The calculated distance (air line) between Pyin Oo Lwin and Sagaing is approximately 32 miles respectively 52 kilometers.
By car or train, the actual journey to Sagaing is certainly longer, as only the direct route (as the crow flies) between Pyin Oo Lwin and Sagaing has been calculated here.
Air line (approximately)
52 kilometers
28 nautical miles