The calculated distance (air line) between Pekanbaru and Batu Berendam is approximately 132 miles respectively 212 kilometers.
By car or train, the actual journey to Batu Berendam is certainly longer, as only the direct route (as the crow flies) between Pekanbaru and Batu Berendam has been calculated here.
Air line (approximately)
212 kilometers
115 nautical miles