| Caerphilly to Hameenkyro | 1,207.95 mi (1,944.01 km) |
| Caerphilly to Hameenlinna | 1,231.18 mi (1,981.39 km) |
| Caerphilly to Hamina | 1,310.76 mi (2,109.46 km) |
| Caerphilly to Hanko | 1,157.06 mi (1,862.11 km) |
| Caerphilly to Hattula | 1,229.56 mi (1,978.79 km) |
| Caerphilly to Haukipudas | 1,376.18 mi (2,214.75 km) |
| Caerphilly to Hausjarvi | 1,244.39 mi (2,002.65 km) |
| Caerphilly to Heinola | 1,285.29 mi (2,068.48 km) |
| Caerphilly to Helsinki | 1,228.98 mi (1,977.86 km) |
| Caerphilly to Hollola | 1,264.26 mi (2,034.64 km) |
| Caerphilly to Huittinen | 1,180.47 mi (1,899.79 km) |
| Caerphilly to Hyvinkaa | 1,235.48 mi (1,988.32 km) |
| Caerphilly to Ii | 1,381.27 mi (2,222.93 km) |
| Caerphilly to Iisalmi | 1,376.55 mi (2,215.34 km) |
| Caerphilly to Ilmajoki | 1,222.14 mi (1,966.85 km) |
