| Waltham Cross to Kidbrooke | 15.69 mi (25.24 km) |
| Waltham Cross to Kidderminster | 105.95 mi (170.51 km) |
| Waltham Cross to Kidlington | 54.63 mi (87.91 km) |
| Waltham Cross to Kidsgrove | 134.52 mi (216.48 km) |
| Waltham Cross to Killamarsh | 125.08 mi (201.29 km) |
| Waltham Cross to Killingworth | 239.53 mi (385.49 km) |
| Waltham Cross to Kilmarnock | 326.89 mi (526.07 km) |
| Waltham Cross to Kilsyth | 338.96 mi (545.50 km) |
| Waltham Cross to Kilwinning | 334.12 mi (537.71 km) |
| Waltham Cross to King's Lynn | 76.01 mi (122.33 km) |
| Waltham Cross to Kings Norton | 94.66 mi (152.34 km) |
| Waltham Cross to Kingsnorth | 55.03 mi (88.56 km) |
| Waltham Cross to Kingsteignton | 173.44 mi (279.12 km) |
| Waltham Cross to Kingston upon Hull | 142.77 mi (229.77 km) |
| Waltham Cross to Kingston upon Thames | 22.22 mi (35.77 km) |
