| Guarda to Navodari | 1,836.89 mi (2,956.19 km) |
| Guarda to Negresti-Oas | 1,593.25 mi (2,564.09 km) |
| Guarda to Nehoiu | 1,720.56 mi (2,768.97 km) |
| Guarda to Ocna Mures | 1,604.42 mi (2,582.07 km) |
| Guarda to Odobesti | 1,757.05 mi (2,827.70 km) |
| Guarda to Odorheiu Secuiesc | 1,672.87 mi (2,692.22 km) |
| Guarda to Oltenita | 1,740.42 mi (2,800.94 km) |
| Guarda to Onesti | 1,742.83 mi (2,804.81 km) |
| Guarda to Oradea | 1,516.98 mi (2,441.34 km) |
| Guarda to Orastie | 1,570.97 mi (2,528.23 km) |
| Guarda to Oravita | 1,495.51 mi (2,406.79 km) |
| Guarda to Orsova | 1,529.90 mi (2,462.13 km) |
| Guarda to Otelu Rosu | 1,529.13 mi (2,460.89 km) |
| Guarda to Otopeni | 1,710.70 mi (2,753.10 km) |
| Guarda to Ovidiu | 1,834.54 mi (2,952.41 km) |
