| Cities | Distance |
|---|---|
| Opoczno to Klaukkala | 645.39 mi (1,038.66 km) |
| Opoczno to Kokkola | 867.08 mi (1,395.42 km) |
| Opoczno to Kontiolahti | 862.90 mi (1,388.70 km) |
| Opoczno to Korsholm | 812.45 mi (1,307.51 km) |
| Opoczno to Kotka | 678.00 mi (1,091.14 km) |
| Opoczno to Kouvola | 699.99 mi (1,126.53 km) |
| Opoczno to Kuhmo | 941.97 mi (1,515.96 km) |
| Opoczno to Kuopio | 841.21 mi (1,353.80 km) |
| Opoczno to Kurikka | 780.53 mi (1,256.14 km) |
| Opoczno to Kuusamo | 1,055.03 mi (1,697.91 km) |
| Opoczno to Kuusankoski | 701.48 mi (1,128.92 km) |
| Opoczno to Lahti | 694.46 mi (1,117.62 km) |
| Opoczno to Laitila | 659.02 mi (1,060.59 km) |
| Opoczno to Lapinlahti | 868.30 mi (1,397.39 km) |
| Opoczno to Lappeenranta | 733.77 mi (1,180.89 km) |