| Mercer Island to Tecuci | 5,726.64 mi (9,216.13 km) |
| Mercer Island to Timisoara | 5,620.20 mi (9,044.84 km) |
| Mercer Island to Titu | 5,771.41 mi (9,288.19 km) |
| Mercer Island to Toflea | 5,711.01 mi (9,190.99 km) |
| Mercer Island to Toplita | 5,621.88 mi (9,047.54 km) |
| Mercer Island to Topoloveni | 5,753.34 mi (9,259.11 km) |
| Mercer Island to Tulcea | 5,791.70 mi (9,320.84 km) |
| Mercer Island to Turda | 5,617.10 mi (9,039.85 km) |
| Mercer Island to Turnu Magurele | 5,817.27 mi (9,361.99 km) |
| Mercer Island to Uricani | 5,683.94 mi (9,147.42 km) |
| Mercer Island to Urlati | 5,761.74 mi (9,272.63 km) |
| Mercer Island to Urziceni | 5,786.56 mi (9,312.57 km) |
| Mercer Island to Valea lui Mihai | 5,526.08 mi (8,893.36 km) |
| Mercer Island to Valenii de Munte | 5,745.87 mi (9,247.08 km) |
| Mercer Island to Valu lui Traian | 5,852.95 mi (9,419.41 km) |
