| Mason City to Chatteris | 4,067.40 mi (6,545.84 km) |
| Mason City to Cheadle | 3,975.33 mi (6,397.68 km) |
| Mason City to Cheadle Hulme | 3,954.53 mi (6,364.20 km) |
| Mason City to Cheam | 4,097.81 mi (6,594.78 km) |
| Mason City to Chellaston | 3,999.14 mi (6,436.00 km) |
| Mason City to Chelmsford | 4,109.28 mi (6,613.24 km) |
| Mason City to Chelsfield | 4,110.21 mi (6,614.74 km) |
| Mason City to Cheltenham | 4,010.40 mi (6,454.12 km) |
| Mason City to Chepstow | 3,997.09 mi (6,432.70 km) |
| Mason City to Cherry Hinton | 4,081.61 mi (6,568.71 km) |
| Mason City to Chertsey | 4,085.82 mi (6,575.49 km) |
| Mason City to Chesham | 4,070.29 mi (6,550.50 km) |
| Mason City to Cheshunt | 4,091.64 mi (6,584.86 km) |
| Mason City to Chester | 3,935.76 mi (6,333.99 km) |
| Mason City to Chester-le-Street | 3,925.72 mi (6,317.83 km) |
