| Idar-Oberstein to Nottingham | 428.14 mi (689.02 km) |
| Idar-Oberstein to Nuneaton | 427.14 mi (687.42 km) |
| Idar-Oberstein to Oadby | 414.34 mi (666.81 km) |
| Idar-Oberstein to Oakengates | 469.77 mi (756.02 km) |
| Idar-Oberstein to Oakham | 403.65 mi (649.61 km) |
| Idar-Oberstein to Oldbury | 447.92 mi (720.86 km) |
| Idar-Oberstein to Oldham | 482.85 mi (777.07 km) |
| Idar-Oberstein to Ollerton | 431.80 mi (694.91 km) |
| Idar-Oberstein to Olton | 437.98 mi (704.87 km) |
| Idar-Oberstein to Omagh | 703.01 mi (1,131.39 km) |
| Idar-Oberstein to Ormesby | 490.85 mi (789.95 km) |
| Idar-Oberstein to Ormskirk | 511.39 mi (823.00 km) |
| Idar-Oberstein to Orpington | 336.79 mi (542.02 km) |
| Idar-Oberstein to Ossett | 468.75 mi (754.38 km) |
| Idar-Oberstein to Oswaldtwistle | 499.47 mi (803.83 km) |
