| Johnston to Cockermouth | 3,960.93 mi (6,374.50 km) |
| Johnston to Colchester | 4,208.53 mi (6,772.98 km) |
| Johnston to Coleford | 4,082.71 mi (6,570.49 km) |
| Johnston to Colne | 4,029.39 mi (6,484.68 km) |
| Johnston to Colwyn Bay | 3,992.92 mi (6,425.99 km) |
| Johnston to Congleton | 4,051.03 mi (6,519.51 km) |
| Johnston to Conisbrough | 4,075.97 mi (6,559.64 km) |
| Johnston to Connahs Quay | 4,018.69 mi (6,467.45 km) |
| Johnston to Consett | 4,008.79 mi (6,451.53 km) |
| Johnston to Conwy | 3,988.51 mi (6,418.88 km) |
| Johnston to Cookstown | 3,840.26 mi (6,180.30 km) |
| Johnston to Corby | 4,129.08 mi (6,645.11 km) |
| Johnston to Corfe Mullen | 4,140.35 mi (6,663.25 km) |
| Johnston to Corsham | 4,111.01 mi (6,616.03 km) |
| Johnston to Coseley | 4,076.57 mi (6,560.60 km) |
