| Rockville Centre to Nyon | 3,847.30 mi (6,191.62 km) |
| Rockville Centre to Oberriet | 3,960.82 mi (6,374.32 km) |
| Rockville Centre to Obersiggenthal | 3,902.13 mi (6,279.86 km) |
| Rockville Centre to Oberwil | 3,870.27 mi (6,228.59 km) |
| Rockville Centre to Oberwingert | 3,921.25 mi (6,310.65 km) |
| Rockville Centre to Oftringen | 3,891.40 mi (6,262.60 km) |
| Rockville Centre to Olten | 3,889.70 mi (6,259.86 km) |
| Rockville Centre to Onex | 3,847.45 mi (6,191.88 km) |
| Rockville Centre to Opfikon | 3,915.29 mi (6,301.04 km) |
| Rockville Centre to Ostermundigen | 3,884.09 mi (6,250.84 km) |
| Rockville Centre to Payerne | 3,864.51 mi (6,219.32 km) |
| Rockville Centre to Pfaffikon | 3,926.41 mi (6,318.94 km) |
| Rockville Centre to Plan-les-Ouates | 3,848.67 mi (6,193.83 km) |
| Rockville Centre to Pratteln | 3,876.30 mi (6,238.31 km) |
| Rockville Centre to Prilly | 3,858.63 mi (6,209.87 km) |