| Portet-sur-Garonne to Cassino | 647.51 mi (1,042.06 km) |
| Portet-sur-Garonne to Castagneto Carducci | 462.39 mi (744.14 km) |
| Portet-sur-Garonne to Castano Primo | 388.47 mi (625.18 km) |
| Portet-sur-Garonne to Castel Bolognese | 519.85 mi (836.61 km) |
| Portet-sur-Garonne to Castel Gandolfo | 584.15 mi (940.11 km) |
| Portet-sur-Garonne to Castel Goffredo | 463.84 mi (746.48 km) |
| Portet-sur-Garonne to Castel Maggiore | 499.60 mi (804.03 km) |
| Portet-sur-Garonne to Castel Mella | 451.71 mi (726.96 km) |
| Portet-sur-Garonne to Castel San Giorgio | 705.87 mi (1,135.99 km) |
| Portet-sur-Garonne to Castel San Giovanni | 410.64 mi (660.86 km) |
| Portet-sur-Garonne to Castel San Pietro Terme | 509.44 mi (819.87 km) |
| Portet-sur-Garonne to Castel Volturno | 661.17 mi (1,064.05 km) |
| Portet-sur-Garonne to Castelbuono | 767.44 mi (1,235.08 km) |
| Portet-sur-Garonne to Casteldaccia | 737.43 mi (1,186.78 km) |
| Portet-sur-Garonne to Castelfidardo | 607.98 mi (978.45 km) |
