| Celbridge to Novi di Modena | 976.77 mi (1,571.97 km) |
| Celbridge to Novi Ligure | 909.29 mi (1,463.35 km) |
| Celbridge to Nuoro | 1,166.10 mi (1,876.66 km) |
| Celbridge to Occhiobello | 1,000.02 mi (1,609.38 km) |
| Celbridge to Oderzo | 995.43 mi (1,602.00 km) |
| Celbridge to Oggiono | 879.70 mi (1,415.74 km) |
| Celbridge to Olbia | 1,137.11 mi (1,830.01 km) |
| Celbridge to Oleggio | 863.00 mi (1,388.86 km) |
| Celbridge to Olgiate Comasco | 866.06 mi (1,393.79 km) |
| Celbridge to Olgiate Olona | 870.18 mi (1,400.42 km) |
| Celbridge to Omegna | 841.86 mi (1,354.84 km) |
| Celbridge to Opera | 893.78 mi (1,438.39 km) |
| Celbridge to Oppeano | 968.14 mi (1,558.08 km) |
| Celbridge to Orbassano | 854.89 mi (1,375.82 km) |
| Celbridge to Orbetello | 1,109.48 mi (1,785.54 km) |
