| Round Rock to Kidbrooke | 4,905.98 mi (7,895.41 km) |
| Round Rock to Kidderminster | 4,791.17 mi (7,710.65 km) |
| Round Rock to Kidlington | 4,844.21 mi (7,796.00 km) |
| Round Rock to Kidsgrove | 4,771.99 mi (7,679.78 km) |
| Round Rock to Killamarsh | 4,801.03 mi (7,726.51 km) |
| Round Rock to Killingworth | 4,744.75 mi (7,635.94 km) |
| Round Rock to Kilmarnock | 4,622.60 mi (7,439.36 km) |
| Round Rock to Kilsyth | 4,629.34 mi (7,450.21 km) |
| Round Rock to Kilwinning | 4,613.97 mi (7,425.47 km) |
| Round Rock to King's Lynn | 4,881.90 mi (7,856.66 km) |
| Round Rock to Kings Norton | 4,803.08 mi (7,729.80 km) |
| Round Rock to Kingsnorth | 4,948.78 mi (7,964.30 km) |
| Round Rock to Kingsteignton | 4,788.61 mi (7,706.53 km) |
| Round Rock to Kingston upon Hull | 4,825.69 mi (7,766.20 km) |
| Round Rock to Kingston upon Thames | 4,894.79 mi (7,877.40 km) |
