| Castle Rock to Iver | 4,686.15 mi (7,541.64 km) |
| Castle Rock to Ivybridge | 4,609.69 mi (7,418.57 km) |
| Castle Rock to Jarrow | 4,515.41 mi (7,266.85 km) |
| Castle Rock to Johnstone | 4,384.20 mi (7,055.69 km) |
| Castle Rock to Kearsley | 4,542.30 mi (7,310.12 km) |
| Castle Rock to Keighley | 4,544.73 mi (7,314.04 km) |
| Castle Rock to Kempston | 4,662.45 mi (7,503.50 km) |
| Castle Rock to Kendal | 4,498.99 mi (7,240.42 km) |
| Castle Rock to Kenilworth | 4,616.51 mi (7,429.55 km) |
| Castle Rock to Kenley | 4,708.44 mi (7,577.51 km) |
| Castle Rock to Kensington | 4,698.02 mi (7,560.73 km) |
| Castle Rock to Kenton | 4,690.32 mi (7,548.35 km) |
| Castle Rock to Kettering | 4,643.44 mi (7,472.89 km) |
| Castle Rock to Kew Green | 4,695.55 mi (7,556.76 km) |
| Castle Rock to Keynsham | 4,620.66 mi (7,436.24 km) |
