| Merthyr Tudful to Grabels | 650.66 mi (1,047.14 km) |
| Merthyr Tudful to Gradignan | 498.00 mi (801.45 km) |
| Merthyr Tudful to Grand-Couronne | 253.36 mi (407.74 km) |
| Merthyr Tudful to Grande-Synthe | 250.05 mi (402.41 km) |
| Merthyr Tudful to Granville | 215.70 mi (347.14 km) |
| Merthyr Tudful to Grasse | 733.77 mi (1,180.88 km) |
| Merthyr Tudful to Graulhet | 604.84 mi (973.39 km) |
| Merthyr Tudful to Gravelines | 243.12 mi (391.27 km) |
| Merthyr Tudful to Grenade | 591.67 mi (952.20 km) |
| Merthyr Tudful to Grenoble | 615.56 mi (990.65 km) |
| Merthyr Tudful to Gretz-Armainvilliers | 340.35 mi (547.74 km) |
| Merthyr Tudful to Grigny | 332.17 mi (534.57 km) |
| Merthyr Tudful to Grigny | 563.69 mi (907.17 km) |
| Merthyr Tudful to Groslay | 315.88 mi (508.36 km) |
| Merthyr Tudful to Guebwiller | 540.53 mi (869.89 km) |
