| Grad to Ifield | 795.68 mi (1,280.52 km) |
| Grad to Ilford | 792.33 mi (1,275.13 km) |
| Grad to Ilfracombe | 962.12 mi (1,548.38 km) |
| Grad to Ilkeston | 881.34 mi (1,418.38 km) |
| Grad to Ilkley | 926.87 mi (1,491.65 km) |
| Grad to Immingham | 858.54 mi (1,381.69 km) |
| Grad to Ince-in-Makerfield | 945.49 mi (1,521.62 km) |
| Grad to Inverness | 1,126.78 mi (1,813.37 km) |
| Grad to Inverurie | 1,061.98 mi (1,709.09 km) |
| Grad to Ipswich | 761.57 mi (1,225.63 km) |
| Grad to Irlam | 936.29 mi (1,506.81 km) |
| Grad to Irthlingborough | 838.00 mi (1,348.64 km) |
| Grad to Irvine | 1,079.21 mi (1,736.82 km) |
| Grad to Islington | 799.74 mi (1,287.06 km) |
| Grad to Iver | 815.84 mi (1,312.97 km) |
