| Helena to Chatteris | 4,508.19 mi (7,255.23 km) |
| Helena to Cheadle | 4,421.81 mi (7,116.22 km) |
| Helena to Cheadle Hulme | 4,396.99 mi (7,076.28 km) |
| Helena to Cheam | 4,554.37 mi (7,329.54 km) |
| Helena to Chellaston | 4,443.84 mi (7,151.67 km) |
| Helena to Chelmsford | 4,556.70 mi (7,333.30 km) |
| Helena to Chelsfield | 4,564.62 mi (7,346.05 km) |
| Helena to Cheltenham | 4,471.70 mi (7,196.51 km) |
| Helena to Chepstow | 4,465.53 mi (7,186.57 km) |
| Helena to Cherry Hinton | 4,525.14 mi (7,282.51 km) |
| Helena to Chertsey | 4,543.90 mi (7,312.70 km) |
| Helena to Chesham | 4,524.91 mi (7,282.14 km) |
| Helena to Cheshunt | 4,542.72 mi (7,310.80 km) |
| Helena to Chester | 4,384.94 mi (7,056.88 km) |
| Helena to Chester-le-Street | 4,344.26 mi (6,991.41 km) |
