| Koyulhisar to Nuth | 1,691.69 mi (2,722.50 km) |
| Koyulhisar to Oegstgeest | 1,771.58 mi (2,851.08 km) |
| Koyulhisar to Oirschot | 1,725.63 mi (2,777.14 km) |
| Koyulhisar to Oisterwijk | 1,731.18 mi (2,786.06 km) |
| Koyulhisar to Oldebroek | 1,718.07 mi (2,764.97 km) |
| Koyulhisar to Oldenzaal | 1,673.70 mi (2,693.56 km) |
| Koyulhisar to Ommen | 1,698.59 mi (2,733.61 km) |
| Koyulhisar to Oosterend | 1,722.66 mi (2,772.35 km) |
| Koyulhisar to Oosterhout | 1,746.46 mi (2,810.65 km) |
| Koyulhisar to Oosterwolde | 1,713.47 mi (2,757.57 km) |
| Koyulhisar to Oostzaan | 1,758.95 mi (2,830.76 km) |
| Koyulhisar to Opmeer | 1,761.19 mi (2,834.36 km) |
| Koyulhisar to Oss | 1,721.13 mi (2,769.89 km) |
| Koyulhisar to Oud-Beijerland | 1,768.27 mi (2,845.76 km) |
| Koyulhisar to Oudenbosch | 1,759.50 mi (2,831.64 km) |
