| Piedmont to Nasaud | 6,206.55 mi (9,988.48 km) |
| Piedmont to Navodari | 6,476.23 mi (10,422.48 km) |
| Piedmont to Negresti-Oas | 6,150.03 mi (9,897.52 km) |
| Piedmont to Nehoiu | 6,365.72 mi (10,244.63 km) |
| Piedmont to Ocna Mures | 6,250.74 mi (10,059.60 km) |
| Piedmont to Odobesti | 6,354.66 mi (10,226.84 km) |
| Piedmont to Odorheiu Secuiesc | 6,285.22 mi (10,115.08 km) |
| Piedmont to Oltenita | 6,452.18 mi (10,383.78 km) |
| Piedmont to Onesti | 6,317.81 mi (10,167.53 km) |
| Piedmont to Oradea | 6,167.22 mi (9,925.18 km) |
| Piedmont to Orastie | 6,270.12 mi (10,090.78 km) |
| Piedmont to Oravita | 6,286.34 mi (10,116.89 km) |
| Piedmont to Orsova | 6,321.70 mi (10,173.80 km) |
| Piedmont to Otelu Rosu | 6,272.00 mi (10,093.81 km) |
| Piedmont to Otopeni | 6,411.47 mi (10,318.26 km) |
