The calculated distance (air line) between Radaškovičy and Svyetlahorsk is approximately 147 miles respectively 237 kilometers.
By car or train, the actual journey to Svyetlahorsk is certainly longer, as only the direct route (as the crow flies) between Radaškovičy and Svyetlahorsk has been calculated here.
Air line (approximately)
237 kilometers
128 nautical miles