The calculated distance (air line) between Crans-Montana and Biel/Bienne is approximately 58 miles respectively 93 kilometers.
By car or train, the actual journey to Biel/Bienne is certainly longer, as only the direct route (as the crow flies) between Crans-Montana and Biel/Bienne has been calculated here.
Air line (approximately)
93 kilometers
50 nautical miles