| Circleville to Nyon | 4,284.70 mi (6,895.56 km) |
| Circleville to Oberriet | 4,388.93 mi (7,063.31 km) |
| Circleville to Obersiggenthal | 4,331.54 mi (6,970.93 km) |
| Circleville to Oberwil | 4,300.72 mi (6,921.34 km) |
| Circleville to Oberwingert | 4,349.77 mi (7,000.28 km) |
| Circleville to Oftringen | 4,322.16 mi (6,955.84 km) |
| Circleville to Olten | 4,320.34 mi (6,952.91 km) |
| Circleville to Onex | 4,285.91 mi (6,897.50 km) |
| Circleville to Opfikon | 4,344.50 mi (6,991.79 km) |
| Circleville to Ostermundigen | 4,317.11 mi (6,947.72 km) |
| Circleville to Payerne | 4,298.99 mi (6,918.55 km) |
| Circleville to Pfaffikon | 4,355.57 mi (7,009.61 km) |
| Circleville to Plan-les-Ouates | 4,287.16 mi (6,899.52 km) |
| Circleville to Pratteln | 4,306.52 mi (6,930.67 km) |
| Circleville to Prilly | 4,294.84 mi (6,911.88 km) |
