| Gresham to Nyon | 5,363.57 mi (8,631.83 km) |
| Gresham to Oberriet | 5,395.63 mi (8,683.43 km) |
| Gresham to Obersiggenthal | 5,353.63 mi (8,615.84 km) |
| Gresham to Oberwil | 5,333.25 mi (8,583.04 km) |
| Gresham to Oberwingert | 5,363.95 mi (8,632.44 km) |
| Gresham to Oftringen | 5,353.91 mi (8,616.28 km) |
| Gresham to Olten | 5,351.56 mi (8,612.50 km) |
| Gresham to Onex | 5,371.44 mi (8,644.50 km) |
| Gresham to Opfikon | 5,363.70 mi (8,632.05 km) |
| Gresham to Ostermundigen | 5,363.78 mi (8,632.18 km) |
| Gresham to Payerne | 5,357.24 mi (8,621.64 km) |
| Gresham to Pfaffikon | 5,373.05 mi (8,647.09 km) |
| Gresham to Plan-les-Ouates | 5,372.84 mi (8,646.75 km) |
| Gresham to Pratteln | 5,336.80 mi (8,588.75 km) |
| Gresham to Prilly | 5,364.73 mi (8,633.69 km) |
