| Sulphur to Cullman (Alabama) | 468.39 mi (753.81 km) |
| Sulphur to Culpeper (Virginia) | 1,042.59 mi (1,677.89 km) |
| Sulphur to Culver City (California) | 1,484.54 mi (2,389.13 km) |
| Sulphur to Cumberland (Maryland) | 1,050.00 mi (1,689.82 km) |
| Sulphur to Cupertino (California) | 1,711.46 mi (2,754.32 km) |
| Sulphur to Cutler Bay (Florida) | 856.87 mi (1,378.99 km) |
| Sulphur to Cutlerville (Michigan) | 969.12 mi (1,559.66 km) |
| Sulphur to Cuyahoga Falls (Ohio) | 1,004.00 mi (1,615.78 km) |
| Sulphur to Cypress (California) | 1,463.33 mi (2,355.00 km) |
| Sulphur to Cypress Gardens (Florida) | 720.70 mi (1,159.85 km) |
| Sulphur to Cypress Lake (Florida) | 741.15 mi (1,192.76 km) |
| Sulphur to D'Iberville (Mississippi) | 266.17 mi (428.35 km) |
| Sulphur to Dakota Ridge (Colorado) | 929.08 mi (1,495.20 km) |
| Sulphur to Dale City (Virginia) | 1,079.53 mi (1,737.33 km) |
| Sulphur to Dallas (Georgia) | 559.56 mi (900.53 km) |
