| Newton Mearns to Oerlinghausen | 590.08 mi (949.64 km) |
| Newton Mearns to Oestrich-Winkel | 649.18 mi (1,044.75 km) |
| Newton Mearns to Offenburg | 723.05 mi (1,163.63 km) |
| Newton Mearns to Oftersheim | 698.05 mi (1,123.41 km) |
| Newton Mearns to Ohrdruf | 707.66 mi (1,138.87 km) |
| Newton Mearns to Ohringen | 736.00 mi (1,184.48 km) |
| Newton Mearns to Olbernhau | 808.51 mi (1,301.18 km) |
| Newton Mearns to Olching | 843.62 mi (1,357.68 km) |
| Newton Mearns to Oldenburg | 534.79 mi (860.67 km) |
| Newton Mearns to Oldenburg in Holstein | 609.78 mi (981.35 km) |
| Newton Mearns to Olfen | 553.72 mi (891.13 km) |
| Newton Mearns to Olpe | 598.10 mi (962.56 km) |
| Newton Mearns to Olsberg | 606.97 mi (976.82 km) |
| Newton Mearns to Oranienburg | 736.82 mi (1,185.79 km) |
| Newton Mearns to Ortenberg | 668.40 mi (1,075.68 km) |
