| River Forest to Iver | 3,939.11 mi (6,339.39 km) |
| River Forest to Ivybridge | 3,841.97 mi (6,183.06 km) |
| River Forest to Jarrow | 3,797.00 mi (6,110.67 km) |
| River Forest to Johnstone | 3,665.12 mi (5,898.44 km) |
| River Forest to Kearsley | 3,807.25 mi (6,127.18 km) |
| River Forest to Keighley | 3,814.30 mi (6,138.53 km) |
| River Forest to Kempston | 3,920.64 mi (6,309.66 km) |
| River Forest to Kendal | 3,770.30 mi (6,067.72 km) |
| River Forest to Kenilworth | 3,873.19 mi (6,233.29 km) |
| River Forest to Kenley | 3,961.08 mi (6,374.74 km) |
| River Forest to Kensington | 3,951.86 mi (6,359.90 km) |
| River Forest to Kenton | 3,944.53 mi (6,348.10 km) |
| River Forest to Kettering | 3,903.35 mi (6,281.84 km) |
| River Forest to Kew Green | 3,949.54 mi (6,356.18 km) |
| River Forest to Keynsham | 3,866.18 mi (6,222.02 km) |
