| Nicholasville to Popovo | 5,349.21 mi (8,608.72 km) |
| Nicholasville to Provadia | 5,402.19 mi (8,693.98 km) |
| Nicholasville to Radnevo | 5,385.21 mi (8,666.67 km) |
| Nicholasville to Radomir | 5,257.61 mi (8,461.30 km) |
| Nicholasville to Rakitovo | 5,327.22 mi (8,573.33 km) |
| Nicholasville to Rakovski | 5,348.19 mi (8,607.09 km) |
| Nicholasville to Razgrad | 5,351.64 mi (8,612.64 km) |
| Nicholasville to Razlog | 5,307.27 mi (8,541.22 km) |
| Nicholasville to Ruse | 5,317.27 mi (8,557.32 km) |
| Nicholasville to Samokov | 5,290.80 mi (8,514.72 km) |
| Nicholasville to Sandanski | 5,313.80 mi (8,551.74 km) |
| Nicholasville to Sevlievo | 5,320.96 mi (8,563.25 km) |
| Nicholasville to Shumen | 5,378.75 mi (8,656.27 km) |
| Nicholasville to Silistra | 5,352.97 mi (8,614.77 km) |
| Nicholasville to Sliven | 5,383.23 mi (8,663.47 km) |
