The calculated distance (air line) between Kermanshah and Sarpol-e Z̄ahāb is approximately 69 miles respectively 112 kilometers.
By car or train, the actual journey to Sarpol-e Z̄ahāb is certainly longer, as only the direct route (as the crow flies) between Kermanshah and Sarpol-e Z̄ahāb has been calculated here.
Air line (approximately)
112 kilometers
60 nautical miles