| Firminy to Kastoria | 920.04 mi (1,480.67 km) |
| Firminy to Katerini | 985.70 mi (1,586.33 km) |
| Firminy to Keratsini | 1,117.62 mi (1,798.63 km) |
| Firminy to Kerkyra | 888.31 mi (1,429.60 km) |
| Firminy to Kiato | 1,076.69 mi (1,732.76 km) |
| Firminy to Kifisia | 1,122.32 mi (1,806.20 km) |
| Firminy to Kilkis | 981.61 mi (1,579.75 km) |
| Firminy to Komotini | 1,100.34 mi (1,770.83 km) |
| Firminy to Korinthos | 1,087.48 mi (1,750.13 km) |
| Firminy to Koropi | 1,131.83 mi (1,821.50 km) |
| Firminy to Korydallos | 1,118.50 mi (1,800.05 km) |
| Firminy to Kos | 1,325.72 mi (2,133.55 km) |
| Firminy to Kozani | 951.06 mi (1,530.59 km) |
| Firminy to Lagos | 1,082.43 mi (1,742.00 km) |
| Firminy to Lamia | 1,028.93 mi (1,655.90 km) |
