| Barrington to Oerlinghausen | 4,261.00 mi (6,857.42 km) |
| Barrington to Oestrich-Winkel | 4,311.78 mi (6,939.14 km) |
| Barrington to Offenburg | 4,368.58 mi (7,030.55 km) |
| Barrington to Oftersheim | 4,357.78 mi (7,013.17 km) |
| Barrington to Ohrdruf | 4,378.85 mi (7,047.08 km) |
| Barrington to Ohringen | 4,398.42 mi (7,078.58 km) |
| Barrington to Olbernhau | 4,477.60 mi (7,206.00 km) |
| Barrington to Olching | 4,506.00 mi (7,251.71 km) |
| Barrington to Oldenburg | 4,200.91 mi (6,760.72 km) |
| Barrington to Oldenburg in Holstein | 4,248.95 mi (6,838.03 km) |
| Barrington to Olfen | 4,224.39 mi (6,798.50 km) |
| Barrington to Olpe | 4,266.95 mi (6,867.00 km) |
| Barrington to Olsberg | 4,277.84 mi (6,884.52 km) |
| Barrington to Oranienburg | 4,389.18 mi (7,063.70 km) |
| Barrington to Ortenberg | 4,336.79 mi (6,979.39 km) |
