The calculated distance (air line) between Klimavichy and Svyetlahorsk is approximately 114 miles respectively 184 kilometers.
By car or train, the actual journey to Svyetlahorsk is certainly longer, as only the direct route (as the crow flies) between Klimavichy and Svyetlahorsk has been calculated here.
Air line (approximately)
184 kilometers
99 nautical miles