| Irvine to Oerlinghausen | 598.40 mi (963.04 km) |
| Irvine to Oestrich-Winkel | 654.44 mi (1,053.22 km) |
| Irvine to Offenburg | 726.52 mi (1,169.23 km) |
| Irvine to Oftersheim | 702.98 mi (1,131.34 km) |
| Irvine to Ohrdruf | 715.58 mi (1,151.61 km) |
| Irvine to Ohringen | 741.36 mi (1,193.11 km) |
| Irvine to Olbernhau | 817.41 mi (1,315.50 km) |
| Irvine to Olching | 849.11 mi (1,366.51 km) |
| Irvine to Oldenburg | 544.65 mi (876.54 km) |
| Irvine to Oldenburg in Holstein | 622.01 mi (1,001.03 km) |
| Irvine to Olfen | 560.93 mi (902.72 km) |
| Irvine to Olpe | 604.59 mi (972.99 km) |
| Irvine to Olsberg | 614.32 mi (988.66 km) |
| Irvine to Oranienburg | 747.85 mi (1,203.55 km) |
| Irvine to Ortenberg | 674.80 mi (1,085.99 km) |
