The calculated distance (air line) between Machulishchy and Svyetlahorsk is approximately 119 miles respectively 191 kilometers.
By car or train, the actual journey to Svyetlahorsk is certainly longer, as only the direct route (as the crow flies) between Machulishchy and Svyetlahorsk has been calculated here.
Air line (approximately)
191 kilometers
103 nautical miles