| Boulder to Kingswinford | 4,569.19 mi (7,353.40 km) |
| Boulder to Kingswood | 4,599.00 mi (7,401.38 km) |
| Boulder to Kippax | 4,545.32 mi (7,314.98 km) |
| Boulder to Kirk of Shotts | 4,385.32 mi (7,057.49 km) |
| Boulder to Kirkby | 4,505.65 mi (7,251.14 km) |
| Boulder to Kirkby in Ashfield | 4,576.36 mi (7,364.94 km) |
| Boulder to Kirkcaldy | 4,395.07 mi (7,073.18 km) |
| Boulder to Kirkintilloch | 4,369.58 mi (7,032.16 km) |
| Boulder to Kirkstall | 4,535.65 mi (7,299.42 km) |
| Boulder to Kirkwall | 4,294.25 mi (6,910.92 km) |
| Boulder to Knaresborough | 4,532.46 mi (7,294.30 km) |
| Boulder to Knottingley | 4,551.84 mi (7,325.49 km) |
| Boulder to Knowle | 4,588.48 mi (7,384.45 km) |
| Boulder to Knowsley | 4,508.18 mi (7,255.22 km) |
| Boulder to Knutsford | 4,530.21 mi (7,290.68 km) |
