| Cities | Distance |
|---|---|
| Portsmouth to Glencullen | 274.59 mi (441.91 km) |
| Portsmouth to Gorey | 257.40 mi (414.24 km) |
| Portsmouth to Greystones | 266.57 mi (429.00 km) |
| Portsmouth to Kilkenny | 292.95 mi (471.46 km) |
| Portsmouth to Killarney | 372.65 mi (599.72 km) |
| Portsmouth to Leixlip | 289.40 mi (465.75 km) |
| Portsmouth to Letterkenny | 398.09 mi (640.67 km) |
| Portsmouth to Lifford | 385.51 mi (620.42 km) |
| Portsmouth to Limerick | 346.92 mi (558.32 km) |
| Portsmouth to Longford | 348.05 mi (560.13 km) |
| Portsmouth to Lucan | 287.68 mi (462.98 km) |
| Portsmouth to Maigh Nuad | 293.56 mi (472.44 km) |
| Portsmouth to Midleton | 315.12 mi (507.14 km) |
| Portsmouth to Monaghan | 342.90 mi (551.84 km) |
| Portsmouth to Mullingar | 324.48 mi (522.20 km) |