The calculated distance (air line) between Kuusalu and Kohtla-Järve is approximately 64 miles respectively 104 kilometers.
By car or train, the actual journey to Kohtla-Järve is certainly longer, as only the direct route (as the crow flies) between Kuusalu and Kohtla-Järve has been calculated here.
Air line (approximately)
104 kilometers
56 nautical miles