| Penafiel to Isny im Allgau | 1,005.40 mi (1,618.03 km) |
| Penafiel to Isselburg | 1,011.64 mi (1,628.07 km) |
| Penafiel to Issum | 997.07 mi (1,604.63 km) |
| Penafiel to Itzehoe | 1,202.05 mi (1,934.52 km) |
| Penafiel to Jena | 1,159.54 mi (1,866.09 km) |
| Penafiel to Jever | 1,136.33 mi (1,828.74 km) |
| Penafiel to Jork | 1,190.29 mi (1,915.59 km) |
| Penafiel to Juchen | 980.56 mi (1,578.06 km) |
| Penafiel to Julich | 968.00 mi (1,557.85 km) |
| Penafiel to Juterbog | 1,250.57 mi (2,012.60 km) |
| Penafiel to Kaarst | 989.43 mi (1,592.34 km) |
| Penafiel to Kaiserslautern | 962.22 mi (1,548.54 km) |
| Penafiel to Kalkar | 1,001.75 mi (1,612.16 km) |
| Penafiel to Kall | 959.01 mi (1,543.39 km) |
| Penafiel to Kaltenkirchen | 1,212.35 mi (1,951.08 km) |
