| Montecatini Terme to Carson (California) | 6,182.72 mi (9,950.12 km) |
| Montecatini Terme to Carson City (Nevada) | 5,923.13 mi (9,532.36 km) |
| Montecatini Terme to Carteret (New Jersey) | 4,151.63 mi (6,681.40 km) |
| Montecatini Terme to Cartersville (Georgia) | 4,881.33 mi (7,855.73 km) |
| Montecatini Terme to Carthage (Missouri) | 5,140.10 mi (8,272.20 km) |
| Montecatini Terme to Cary (Illinois) | 4,666.54 mi (7,510.07 km) |
| Montecatini Terme to Cary (North Carolina) | 4,548.24 mi (7,319.69 km) |
| Montecatini Terme to Casa de Oro-Mount Helix (California) | 6,201.92 mi (9,981.02 km) |
| Montecatini Terme to Casa Grande (Arizona) | 6,015.77 mi (9,681.44 km) |
| Montecatini Terme to Casas Adobes (Arizona) | 6,019.94 mi (9,688.16 km) |
| Montecatini Terme to Cascades (Virginia) | 4,349.90 mi (7,000.49 km) |
| Montecatini Terme to Casper (Wyoming) | 5,296.93 mi (8,524.59 km) |
| Montecatini Terme to Casselberry (Florida) | 4,973.17 mi (8,003.54 km) |
| Montecatini Terme to Castaic (California) | 6,157.78 mi (9,909.99 km) |
| Montecatini Terme to Castle Pines (Colorado) | 5,422.21 mi (8,726.20 km) |
