| Guadarrama to Trezzo sull'Adda | 764.82 mi (1,230.87 km) |
| Guadarrama to Tricase | 1,181.14 mi (1,900.85 km) |
| Guadarrama to Trieste | 960.98 mi (1,546.55 km) |
| Guadarrama to Triggiano | 1,095.19 mi (1,762.53 km) |
| Guadarrama to Trinitapoli | 1,051.24 mi (1,691.80 km) |
| Guadarrama to Trissino | 847.85 mi (1,364.48 km) |
| Guadarrama to Triuggio | 754.98 mi (1,215.02 km) |
| Guadarrama to Trofarello | 668.12 mi (1,075.23 km) |
| Guadarrama to Troina | 1,017.94 mi (1,638.21 km) |
| Guadarrama to Turin | 668.09 mi (1,075.19 km) |
| Guadarrama to Udine | 943.96 mi (1,519.16 km) |
| Guadarrama to Ugento | 1,170.69 mi (1,884.05 km) |
| Guadarrama to Umbertide | 861.20 mi (1,385.96 km) |
| Guadarrama to Urbino | 880.05 mi (1,416.30 km) |
| Guadarrama to Urgnano | 772.40 mi (1,243.06 km) |
