| Penarth to Nasaud | 1,265.58 mi (2,036.76 km) |
| Penarth to Navodari | 1,538.53 mi (2,476.02 km) |
| Penarth to Negresti-Oas | 1,207.78 mi (1,943.73 km) |
| Penarth to Nehoiu | 1,405.05 mi (2,261.22 km) |
| Penarth to Ocna Mures | 1,267.75 mi (2,040.24 km) |
| Penarth to Odobesti | 1,424.57 mi (2,292.62 km) |
| Penarth to Odorheiu Secuiesc | 1,331.93 mi (2,143.54 km) |
| Penarth to Oltenita | 1,462.26 mi (2,353.28 km) |
| Penarth to Onesti | 1,396.69 mi (2,247.75 km) |
| Penarth to Oradea | 1,164.61 mi (1,874.26 km) |
| Penarth to Orastie | 1,256.22 mi (2,021.69 km) |
| Penarth to Oravita | 1,218.79 mi (1,961.45 km) |
| Penarth to Orsova | 1,259.81 mi (2,027.48 km) |
| Penarth to Otelu Rosu | 1,230.87 mi (1,980.89 km) |
| Penarth to Otopeni | 1,421.90 mi (2,288.33 km) |
