| Grinon to Ifield | 773.58 mi (1,244.95 km) |
| Grinon to Ilford | 805.80 mi (1,296.81 km) |
| Grinon to Ilfracombe | 759.54 mi (1,222.35 km) |
| Grinon to Ilkeston | 889.31 mi (1,431.20 km) |
| Grinon to Ilkley | 951.85 mi (1,531.85 km) |
| Grinon to Immingham | 941.07 mi (1,514.51 km) |
| Grinon to Ince-in-Makerfield | 922.42 mi (1,484.49 km) |
| Grinon to Inverness | 1,192.74 mi (1,919.54 km) |
| Grinon to Inverurie | 1,180.79 mi (1,900.30 km) |
| Grinon to Ipswich | 852.10 mi (1,371.33 km) |
| Grinon to Irlam | 916.43 mi (1,474.85 km) |
| Grinon to Irthlingborough | 850.46 mi (1,368.69 km) |
| Grinon to Irvine | 1,064.92 mi (1,713.82 km) |
| Grinon to Islington | 802.85 mi (1,292.06 km) |
| Grinon to Iver | 797.22 mi (1,282.99 km) |
