| Caerphilly to Thorigny-sur-Marne | 321.37 mi (517.19 km) |
| Caerphilly to Thouare-sur-Loire | 308.26 mi (496.10 km) |
| Caerphilly to Thouars | 345.57 mi (556.13 km) |
| Caerphilly to Tinqueux | 355.61 mi (572.30 km) |
| Caerphilly to Tomblaine | 462.53 mi (744.38 km) |
| Caerphilly to Tonneins | 522.59 mi (841.03 km) |
| Caerphilly to Torcy | 320.55 mi (515.87 km) |
| Caerphilly to Toul | 450.19 mi (724.51 km) |
| Caerphilly to Toulon | 722.99 mi (1,163.55 km) |
| Caerphilly to Toulouse | 591.89 mi (952.56 km) |
| Caerphilly to Tourcoing | 282.60 mi (454.81 km) |
| Caerphilly to Tourlaville | 151.91 mi (244.48 km) |
| Caerphilly to Tournan-en-Brie | 329.44 mi (530.18 km) |
| Caerphilly to Tournefeuille | 591.47 mi (951.87 km) |
| Caerphilly to Tournon-sur-Rhone | 581.67 mi (936.11 km) |
