| Radviliskis to Koscielisko | 475.72 mi (765.60 km) |
| Radviliskis to Koscierzyna | 249.49 mi (401.52 km) |
| Radviliskis to Kostrzyn | 347.76 mi (559.66 km) |
| Radviliskis to Kostrzyn nad Odra | 421.65 mi (678.57 km) |
| Radviliskis to Koszalin | 311.98 mi (502.09 km) |
| Radviliskis to Kowary | 469.87 mi (756.19 km) |
| Radviliskis to Kozienice | 302.40 mi (486.67 km) |
| Radviliskis to Kozuchow | 428.11 mi (688.97 km) |
| Radviliskis to Kozy | 448.99 mi (722.58 km) |
| Radviliskis to Krakow | 423.94 mi (682.27 km) |
| Radviliskis to Krapkowice | 434.84 mi (699.80 km) |
| Radviliskis to Krasnik | 341.84 mi (550.13 km) |
| Radviliskis to Krasnystaw | 333.14 mi (536.14 km) |
| Radviliskis to Krosno | 429.24 mi (690.79 km) |
| Radviliskis to Krosno Odrzanskie | 430.75 mi (693.23 km) |
