| Royston to Clermont (Florida) | 4,350.02 mi (7,000.68 km) |
| Royston to Cleveland (Mississippi) | 4,451.36 mi (7,163.78 km) |
| Royston to Cleveland (Ohio) | 3,724.71 mi (5,994.35 km) |
| Royston to Cleveland (Tennessee) | 4,148.17 mi (6,675.83 km) |
| Royston to Cleveland Heights (Ohio) | 3,718.57 mi (5,984.46 km) |
| Royston to Cliffside Park (New Jersey) | 3,448.40 mi (5,549.66 km) |
| Royston to Clifton (Colorado) | 4,819.65 mi (7,756.47 km) |
| Royston to Clifton (New Jersey) | 3,453.46 mi (5,557.80 km) |
| Royston to Clinton (Iowa) | 4,033.82 mi (6,491.80 km) |
| Royston to Clinton (Maryland) | 3,659.17 mi (5,888.87 km) |
| Royston to Clinton (Mississippi) | 4,506.54 mi (7,252.58 km) |
| Royston to Clinton (Utah) | 4,824.34 mi (7,764.02 km) |
| Royston to Clive (Iowa) | 4,175.82 mi (6,720.34 km) |
| Royston to Cloquet (Minnesota) | 3,885.00 mi (6,252.31 km) |
| Royston to Cloverleaf (Texas) | 4,829.03 mi (7,771.58 km) |
