| Merthyr Tudful to Guerande | 307.99 mi (495.65 km) |
| Merthyr Tudful to Gueret | 452.38 mi (728.03 km) |
| Merthyr Tudful to Guichen | 270.21 mi (434.86 km) |
| Merthyr Tudful to Guidel | 273.13 mi (439.56 km) |
| Merthyr Tudful to Guilherand | 603.34 mi (970.98 km) |
| Merthyr Tudful to Guipavas | 233.10 mi (375.14 km) |
| Merthyr Tudful to Gujan-Mestras | 502.36 mi (808.47 km) |
| Merthyr Tudful to Guyancourt | 316.32 mi (509.07 km) |
| Merthyr Tudful to Hagondange | 452.99 mi (729.02 km) |
| Merthyr Tudful to Haguenau | 532.15 mi (856.41 km) |
| Merthyr Tudful to Halluin | 288.78 mi (464.75 km) |
| Merthyr Tudful to Harnes | 286.94 mi (461.78 km) |
| Merthyr Tudful to Haubourdin | 286.51 mi (461.10 km) |
| Merthyr Tudful to Hautmont | 333.76 mi (537.13 km) |
| Merthyr Tudful to Hayange | 446.42 mi (718.44 km) |
