| Karkkila to Popovo | 1,190.22 mi (1,915.47 km) |
| Karkkila to Provadia | 1,206.25 mi (1,941.27 km) |
| Karkkila to Radnevo | 1,261.86 mi (2,030.77 km) |
| Karkkila to Radomir | 1,243.66 mi (2,001.48 km) |
| Karkkila to Rakitovo | 1,281.69 mi (2,062.69 km) |
| Karkkila to Rakovski | 1,260.99 mi (2,029.37 km) |
| Karkkila to Razgrad | 1,178.47 mi (1,896.56 km) |
| Karkkila to Razlog | 1,288.98 mi (2,074.41 km) |
| Karkkila to Ruse | 1,156.81 mi (1,861.70 km) |
| Karkkila to Samokov | 1,257.54 mi (2,023.82 km) |
| Karkkila to Sandanski | 1,310.96 mi (2,109.79 km) |
| Karkkila to Sevlievo | 1,210.24 mi (1,947.70 km) |
| Karkkila to Shumen | 1,197.22 mi (1,926.74 km) |
| Karkkila to Silistra | 1,141.20 mi (1,836.59 km) |
| Karkkila to Sliven | 1,236.50 mi (1,989.95 km) |
