The calculated distance (air line) between Kot Radha Kishan and Tarn Tāran is approximately 53 miles respectively 85 kilometers.
By car or train, the actual journey to Tarn Tāran is certainly longer, as only the direct route (as the crow flies) between Kot Radha Kishan and Tarn Tāran has been calculated here.
Air line (approximately)
85 kilometers
46 nautical miles