| Knittelfeld to Novi di Modena | 247.35 mi (398.08 km) |
| Knittelfeld to Novi Ligure | 335.98 mi (540.71 km) |
| Knittelfeld to Nuoro | 549.56 mi (884.42 km) |
| Knittelfeld to Occhiobello | 222.12 mi (357.47 km) |
| Knittelfeld to Oderzo | 148.89 mi (239.61 km) |
| Knittelfeld to Oggiono | 278.67 mi (448.48 km) |
| Knittelfeld to Olbia | 509.00 mi (819.16 km) |
| Knittelfeld to Oleggio | 315.47 mi (507.70 km) |
| Knittelfeld to Olgiate Comasco | 295.78 mi (476.00 km) |
| Knittelfeld to Olgiate Olona | 303.45 mi (488.36 km) |
| Knittelfeld to Omegna | 318.76 mi (512.99 km) |
| Knittelfeld to Opera | 296.22 mi (476.72 km) |
| Knittelfeld to Oppeano | 218.70 mi (351.96 km) |
| Knittelfeld to Orbassano | 380.97 mi (613.10 km) |
| Knittelfeld to Orbetello | 374.45 mi (602.62 km) |
