| Catalca to Nottingham | 1,598.66 mi (2,572.79 km) |
| Catalca to Nuneaton | 1,602.09 mi (2,578.31 km) |
| Catalca to Oadby | 1,588.01 mi (2,555.65 km) |
| Catalca to Oakengates | 1,645.00 mi (2,647.38 km) |
| Catalca to Oakham | 1,575.91 mi (2,536.19 km) |
| Catalca to Oldbury | 1,623.75 mi (2,613.18 km) |
| Catalca to Oldham | 1,649.65 mi (2,654.85 km) |
| Catalca to Ollerton | 1,599.13 mi (2,573.55 km) |
| Catalca to Olton | 1,613.95 mi (2,597.39 km) |
| Catalca to Omagh | 1,871.27 mi (3,011.52 km) |
| Catalca to Ormesby | 1,638.39 mi (2,636.74 km) |
| Catalca to Ormskirk | 1,680.12 mi (2,703.90 km) |
| Catalca to Orpington | 1,515.05 mi (2,438.24 km) |
| Catalca to Ossett | 1,631.97 mi (2,626.40 km) |
| Catalca to Oswaldtwistle | 1,664.78 mi (2,679.21 km) |
