| Effingham to Norwich | 4,133.18 mi (6,651.71 km) |
| Effingham to Nottingham | 4,031.32 mi (6,487.78 km) |
| Effingham to Nuneaton | 4,031.52 mi (6,488.10 km) |
| Effingham to Oadby | 4,044.30 mi (6,508.68 km) |
| Effingham to Oakengates | 3,989.02 mi (6,419.70 km) |
| Effingham to Oakham | 4,055.29 mi (6,526.35 km) |
| Effingham to Oldbury | 4,011.03 mi (6,455.13 km) |
| Effingham to Oldham | 3,978.21 mi (6,402.31 km) |
| Effingham to Ollerton | 4,029.19 mi (6,484.36 km) |
| Effingham to Olton | 4,021.00 mi (6,471.18 km) |
| Effingham to Omagh | 3,756.63 mi (6,045.71 km) |
| Effingham to Ormesby | 3,985.35 mi (6,413.80 km) |
| Effingham to Ormskirk | 3,948.56 mi (6,354.60 km) |
| Effingham to Orpington | 4,125.73 mi (6,639.73 km) |
| Effingham to Ossett | 3,994.63 mi (6,428.73 km) |
