| Kocaeli to Pyrzyce | 1,105.99 mi (1,779.91 km) |
| Kocaeli to Pyskowice | 858.61 mi (1,381.80 km) |
| Kocaeli to Raciborz | 855.76 mi (1,377.22 km) |
| Kocaeli to Radom | 845.29 mi (1,360.36 km) |
| Kocaeli to Radomsko | 869.96 mi (1,400.06 km) |
| Kocaeli to Radzionkow Nowy | 850.57 mi (1,368.86 km) |
| Kocaeli to Radzymin | 904.22 mi (1,455.21 km) |
| Kocaeli to Radzyn Podlaski | 836.31 mi (1,345.91 km) |
| Kocaeli to Rawa Mazowiecka | 887.70 mi (1,428.62 km) |
| Kocaeli to Rawicz | 972.66 mi (1,565.35 km) |
| Kocaeli to Reda | 1,094.84 mi (1,761.97 km) |
| Kocaeli to Rogozno | 1,026.15 mi (1,651.43 km) |
| Kocaeli to Ropczyce | 756.52 mi (1,217.50 km) |
| Kocaeli to Ruda Slaska | 845.38 mi (1,360.51 km) |
| Kocaeli to Rumia | 1,090.85 mi (1,755.56 km) |
