The calculated distance (air line) between Pyin Oo Lwin and Yenangyaung is approximately 149 miles respectively 240 kilometers.
By car or train, the actual journey to Yenangyaung is certainly longer, as only the direct route (as the crow flies) between Pyin Oo Lwin and Yenangyaung has been calculated here.
Air line (approximately)
240 kilometers
129 nautical miles