| Gela to Oegstgeest | 1,147.51 mi (1,846.73 km) |
| Gela to Oirschot | 1,089.16 mi (1,752.84 km) |
| Gela to Oisterwijk | 1,096.25 mi (1,764.24 km) |
| Gela to Oldebroek | 1,137.28 mi (1,830.27 km) |
| Gela to Oldenzaal | 1,111.88 mi (1,789.40 km) |
| Gela to Ommen | 1,132.87 mi (1,823.18 km) |
| Gela to Oosterend | 1,169.56 mi (1,882.23 km) |
| Gela to Oosterhout | 1,106.76 mi (1,781.15 km) |
| Gela to Oosterwolde | 1,165.11 mi (1,875.06 km) |
| Gela to Oostzaan | 1,154.67 mi (1,858.26 km) |
| Gela to Opmeer | 1,169.90 mi (1,882.77 km) |
| Gela to Oss | 1,101.45 mi (1,772.62 km) |
| Gela to Oud-Beijerland | 1,126.65 mi (1,813.17 km) |
| Gela to Oudenbosch | 1,110.34 mi (1,786.92 km) |
| Gela to Oudewater | 1,129.39 mi (1,817.57 km) |
