| Layton to Nuth | 5,061.66 mi (8,145.95 km) |
| Layton to Oegstgeest | 4,956.65 mi (7,976.96 km) |
| Layton to Oirschot | 5,015.19 mi (8,071.17 km) |
| Layton to Oisterwijk | 5,008.08 mi (8,059.72 km) |
| Layton to Oldebroek | 4,986.30 mi (8,024.67 km) |
| Layton to Oldenzaal | 5,023.23 mi (8,084.11 km) |
| Layton to Ommen | 4,998.18 mi (8,043.79 km) |
| Layton to Oosterend | 4,963.87 mi (7,988.57 km) |
| Layton to Oosterhout | 4,994.77 mi (8,038.31 km) |
| Layton to Oosterwolde | 4,971.07 mi (8,000.16 km) |
| Layton to Oostzaan | 4,956.97 mi (7,977.47 km) |
| Layton to Opmeer | 4,945.94 mi (7,959.73 km) |
| Layton to Oss | 5,008.59 mi (8,060.54 km) |
| Layton to Oud-Beijerland | 4,972.46 mi (8,002.40 km) |
| Layton to Oudenbosch | 4,987.30 mi (8,026.28 km) |
