| Catalca to Noventa Vicentina | 897.24 mi (1,443.97 km) |
| Catalca to Novi di Modena | 922.17 mi (1,484.09 km) |
| Catalca to Novi Ligure | 1,023.25 mi (1,646.77 km) |
| Catalca to Nuoro | 1,001.22 mi (1,611.31 km) |
| Catalca to Occhiobello | 889.82 mi (1,432.02 km) |
| Catalca to Oderzo | 860.78 mi (1,385.30 km) |
| Catalca to Oggiono | 1,007.82 mi (1,621.93 km) |
| Catalca to Olbia | 986.57 mi (1,587.72 km) |
| Catalca to Oleggio | 1,039.38 mi (1,672.71 km) |
| Catalca to Olgiate Comasco | 1,025.92 mi (1,651.05 km) |
| Catalca to Olgiate Olona | 1,027.91 mi (1,654.25 km) |
| Catalca to Omegna | 1,053.62 mi (1,695.64 km) |
| Catalca to Opera | 1,008.93 mi (1,623.71 km) |
| Catalca to Oppeano | 914.11 mi (1,471.11 km) |
| Catalca to Orbassano | 1,086.02 mi (1,747.79 km) |
