The calculated distance (air line) between Svyetlahorsk and Kličaŭ is approximately 62 miles respectively 99 kilometers.
By car or train, the actual journey to Kličaŭ is certainly longer, as only the direct route (as the crow flies) between Svyetlahorsk and Kličaŭ has been calculated here.
Air line (approximately)
99 kilometers
54 nautical miles