The calculated distance (air line) between Kalodzishchy and Svyetlahorsk is approximately 121 miles respectively 195 kilometers.
By car or train, the actual journey to Svyetlahorsk is certainly longer, as only the direct route (as the crow flies) between Kalodzishchy and Svyetlahorsk has been calculated here.
Air line (approximately)
195 kilometers
105 nautical miles