| Frondenberg to Isselburg | 61.02 mi (98.21 km) |
| Frondenberg to Issum | 57.91 mi (93.19 km) |
| Frondenberg to Itzehoe | 184.65 mi (297.16 km) |
| Frondenberg to Jena | 169.60 mi (272.95 km) |
| Frondenberg to Jever | 145.38 mi (233.97 km) |
| Frondenberg to Jork | 163.70 mi (263.44 km) |
| Frondenberg to Juchen | 60.33 mi (97.10 km) |
| Frondenberg to Julich | 71.81 mi (115.56 km) |
| Frondenberg to Juterbog | 229.88 mi (369.96 km) |
| Frondenberg to Kaarst | 52.63 mi (84.71 km) |
| Frondenberg to Kaiserslautern | 140.07 mi (225.41 km) |
| Frondenberg to Kalkar | 65.86 mi (105.99 km) |
| Frondenberg to Kall | 82.79 mi (133.24 km) |
| Frondenberg to Kaltenkirchen | 187.66 mi (302.01 km) |
| Frondenberg to Kamen | 9.34 mi (15.03 km) |
