| Cities | Distance |
|---|---|
| Greenock to Nottingham | 252.82 mi (406.88 km) |
| Greenock to Nuneaton | 271.57 mi (437.06 km) |
| Greenock to Oadby | 275.16 mi (442.83 km) |
| Greenock to Oakengates | 243.43 mi (391.76 km) |
| Greenock to Oakham | 278.74 mi (448.59 km) |
| Greenock to Oldbury | 262.60 mi (422.61 km) |
| Greenock to Oldham | 196.89 mi (316.86 km) |
| Greenock to Ollerton | 242.00 mi (389.46 km) |
| Greenock to Olton | 270.50 mi (435.32 km) |
| Greenock to Omagh | 136.76 mi (220.10 km) |
| Greenock to Ormesby | 171.09 mi (275.34 km) |
| Greenock to Ormskirk | 180.89 mi (291.12 km) |
| Greenock to Orpington | 373.44 mi (600.99 km) |
| Greenock to Ossett | 201.65 mi (324.52 km) |
| Greenock to Oswaldtwistle | 179.30 mi (288.56 km) |