| Merthyr Tudful to Civril | 1,842.11 mi (2,964.59 km) |
| Merthyr Tudful to Cizre | 2,406.30 mi (3,872.56 km) |
| Merthyr Tudful to Cobanlar | 1,867.03 mi (3,004.69 km) |
| Merthyr Tudful to Corlu | 1,637.98 mi (2,636.07 km) |
| Merthyr Tudful to Corum | 1,963.33 mi (3,159.67 km) |
| Merthyr Tudful to Cukurca | 2,470.72 mi (3,976.24 km) |
| Merthyr Tudful to Cukurcayir | 2,149.77 mi (3,459.72 km) |
| Merthyr Tudful to Cumayeri | 1,780.91 mi (2,866.09 km) |
| Merthyr Tudful to Cumra | 1,999.87 mi (3,218.49 km) |
| Merthyr Tudful to Cungus | 2,244.86 mi (3,612.76 km) |
| Merthyr Tudful to Dargecit | 2,377.18 mi (3,825.70 km) |
| Merthyr Tudful to Davutlar | 1,769.81 mi (2,848.24 km) |
| Merthyr Tudful to Demirozu | 2,188.82 mi (3,522.57 km) |
| Merthyr Tudful to Demre | 1,947.89 mi (3,134.83 km) |
| Merthyr Tudful to Denizciler | 2,184.83 mi (3,516.15 km) |
