| Calafat to Nottingham | 1,257.54 mi (2,023.81 km) |
| Calafat to Nuneaton | 1,260.46 mi (2,028.51 km) |
| Calafat to Oadby | 1,246.52 mi (2,006.08 km) |
| Calafat to Oakengates | 1,303.36 mi (2,097.56 km) |
| Calafat to Oakham | 1,234.57 mi (1,986.85 km) |
| Calafat to Oldbury | 1,282.03 mi (2,063.22 km) |
| Calafat to Oldham | 1,309.04 mi (2,106.70 km) |
| Calafat to Ollerton | 1,258.37 mi (2,025.15 km) |
| Calafat to Olton | 1,272.20 mi (2,047.41 km) |
| Calafat to Omagh | 1,530.80 mi (2,463.58 km) |
| Calafat to Ormesby | 1,300.05 mi (2,092.23 km) |
| Calafat to Ormskirk | 1,339.33 mi (2,155.45 km) |
| Calafat to Orpington | 1,172.97 mi (1,887.72 km) |
| Calafat to Ossett | 1,291.76 mi (2,078.88 km) |
| Calafat to Oswaldtwistle | 1,324.39 mi (2,131.40 km) |
