| Merthyr Tudful to Cottage Grove (Oregon) | 4,919.88 mi (7,917.78 km) |
| Merthyr Tudful to Cottage Lake (Washington) | 4,669.75 mi (7,515.24 km) |
| Merthyr Tudful to Cottonwood (Arizona) | 5,075.49 mi (8,168.21 km) |
| Merthyr Tudful to Cottonwood Heights (Utah) | 4,749.87 mi (7,644.18 km) |
| Merthyr Tudful to Council Bluffs (Iowa) | 4,156.95 mi (6,689.96 km) |
| Merthyr Tudful to Country Club (Florida) | 4,284.14 mi (6,894.66 km) |
| Merthyr Tudful to Country Club Hills (Illinois) | 3,833.73 mi (6,169.79 km) |
| Merthyr Tudful to Country Walk (Florida) | 4,304.99 mi (6,928.22 km) |
| Merthyr Tudful to Covina (California) | 5,310.04 mi (8,545.68 km) |
| Merthyr Tudful to Covington (Georgia) | 4,053.55 mi (6,523.56 km) |
| Merthyr Tudful to Covington (Kentucky) | 3,824.06 mi (6,154.22 km) |
| Merthyr Tudful to Covington (Louisiana) | 4,464.39 mi (7,184.75 km) |
| Merthyr Tudful to Covington (Washington) | 4,691.80 mi (7,550.72 km) |
| Merthyr Tudful to Cranston (Rhode Island) | 3,175.09 mi (5,109.81 km) |
| Merthyr Tudful to Crawfordsville (Indiana) | 3,871.61 mi (6,230.76 km) |
