| Grugliasco to Navodari | 1,031.57 mi (1,660.15 km) |
| Grugliasco to Negresti-Oas | 777.01 mi (1,250.48 km) |
| Grugliasco to Nehoiu | 909.74 mi (1,464.09 km) |
| Grugliasco to Ocna Mures | 789.18 mi (1,270.07 km) |
| Grugliasco to Odobesti | 944.09 mi (1,519.37 km) |
| Grugliasco to Odorheiu Secuiesc | 857.94 mi (1,380.71 km) |
| Grugliasco to Oltenita | 938.27 mi (1,510.00 km) |
| Grugliasco to Onesti | 928.07 mi (1,493.59 km) |
| Grugliasco to Oradea | 700.31 mi (1,127.03 km) |
| Grugliasco to Orastie | 757.82 mi (1,219.60 km) |
| Grugliasco to Oravita | 687.73 mi (1,106.79 km) |
| Grugliasco to Orsova | 724.66 mi (1,166.22 km) |
| Grugliasco to Otelu Rosu | 717.82 mi (1,155.22 km) |
| Grugliasco to Otopeni | 905.21 mi (1,456.80 km) |
| Grugliasco to Ovidiu | 1,029.61 mi (1,656.99 km) |
