| Mercogliano to Nottingham | 1,114.42 mi (1,793.49 km) |
| Mercogliano to Nuneaton | 1,104.98 mi (1,778.30 km) |
| Mercogliano to Oadby | 1,095.89 mi (1,763.66 km) |
| Mercogliano to Oakengates | 1,144.45 mi (1,841.81 km) |
| Mercogliano to Oakham | 1,088.42 mi (1,751.64 km) |
| Mercogliano to Oldbury | 1,121.99 mi (1,805.67 km) |
| Mercogliano to Oldham | 1,171.43 mi (1,885.23 km) |
| Mercogliano to Ollerton | 1,121.91 mi (1,805.53 km) |
| Mercogliano to Olton | 1,112.19 mi (1,789.90 km) |
| Mercogliano to Omagh | 1,381.64 mi (2,223.53 km) |
| Mercogliano to Ormesby | 1,191.65 mi (1,917.77 km) |
| Mercogliano to Ormskirk | 1,196.45 mi (1,925.49 km) |
| Mercogliano to Orpington | 1,002.79 mi (1,613.84 km) |
| Mercogliano to Ossett | 1,161.35 mi (1,869.00 km) |
| Mercogliano to Oswaldtwistle | 1,188.98 mi (1,913.47 km) |
