| Hertford to Trim | 306.24 mi (492.85 km) |
| Hertford to Tuam | 386.12 mi (621.39 km) |
| Hertford to Tullamore | 327.92 mi (527.73 km) |
| Hertford to Waterford | 301.35 mi (484.98 km) |
| Hertford to Wexford | 273.44 mi (440.06 km) |
| Hertford to Wicklow | 263.98 mi (424.83 km) |
| Hertford to Abano Terme | 699.97 mi (1,126.49 km) |
| Hertford to Abbiategrasso | 602.65 mi (969.87 km) |
| Hertford to Acate | 1,243.01 mi (2,000.42 km) |
| Hertford to Acerra | 1,014.08 mi (1,632.00 km) |
| Hertford to Aci Castello | 1,230.69 mi (1,980.60 km) |
| Hertford to Aci Catena | 1,227.73 mi (1,975.83 km) |
| Hertford to Aci Sant'Antonio | 1,227.24 mi (1,975.06 km) |
| Hertford to Acireale | 1,227.72 mi (1,975.83 km) |
| Hertford to Acquaviva delle Fonti | 1,098.94 mi (1,768.57 km) |
