| Boulder to Turkeli | 6,233.24 mi (10,031.44 km) |
| Boulder to Turkoglu | 6,573.48 mi (10,578.99 km) |
| Boulder to Tut | 6,575.86 mi (10,582.82 km) |
| Boulder to Tuzla | 6,163.86 mi (9,919.77 km) |
| Boulder to Tuzluca | 6,567.97 mi (10,570.12 km) |
| Boulder to Ula | 6,351.93 mi (10,222.44 km) |
| Boulder to Ulas | 6,456.32 mi (10,390.45 km) |
| Boulder to Ulubey | 6,382.76 mi (10,272.06 km) |
| Boulder to Ulubey | 6,302.27 mi (10,142.52 km) |
| Boulder to Uludere | 6,715.11 mi (10,806.92 km) |
| Boulder to Ulukisla | 6,501.21 mi (10,462.69 km) |
| Boulder to Ulus | 6,210.72 mi (9,995.19 km) |
| Boulder to Umurlu | 6,295.41 mi (10,131.48 km) |
| Boulder to Unye | 6,355.96 mi (10,228.93 km) |
| Boulder to Urgup | 6,447.55 mi (10,376.33 km) |
