| Gryfino to Ifield | 638.37 mi (1,027.35 km) |
| Gryfino to Ilford | 617.14 mi (993.19 km) |
| Gryfino to Ilfracombe | 797.64 mi (1,283.68 km) |
| Gryfino to Ilkeston | 654.09 mi (1,052.66 km) |
| Gryfino to Ilkley | 669.01 mi (1,076.66 km) |
| Gryfino to Immingham | 604.76 mi (973.27 km) |
| Gryfino to Ince-in-Makerfield | 702.53 mi (1,130.61 km) |
| Gryfino to Inverness | 787.47 mi (1,267.31 km) |
| Gryfino to Inverurie | 717.54 mi (1,154.77 km) |
| Gryfino to Ipswich | 563.97 mi (907.62 km) |
| Gryfino to Irlam | 695.91 mi (1,119.97 km) |
| Gryfino to Irthlingborough | 633.07 mi (1,018.83 km) |
| Gryfino to Irvine | 783.99 mi (1,261.71 km) |
| Gryfino to Islington | 625.17 mi (1,006.11 km) |
| Gryfino to Iver | 642.28 mi (1,033.64 km) |
