| Kierspe to Popovo | 1,023.19 mi (1,646.66 km) |
| Kierspe to Provadia | 1,077.92 mi (1,734.75 km) |
| Kierspe to Radnevo | 1,058.04 mi (1,702.75 km) |
| Kierspe to Radomir | 935.00 mi (1,504.73 km) |
| Kierspe to Rakitovo | 1,003.74 mi (1,615.36 km) |
| Kierspe to Rakovski | 1,021.88 mi (1,644.55 km) |
| Kierspe to Razgrad | 1,026.66 mi (1,652.25 km) |
| Kierspe to Razlog | 986.32 mi (1,587.33 km) |
| Kierspe to Ruse | 992.16 mi (1,596.72 km) |
| Kierspe to Samokov | 967.32 mi (1,556.75 km) |
| Kierspe to Sandanski | 995.52 mi (1,602.13 km) |
| Kierspe to Sevlievo | 993.71 mi (1,599.23 km) |
| Kierspe to Shumen | 1,053.77 mi (1,695.88 km) |
| Kierspe to Silistra | 1,032.80 mi (1,662.14 km) |
| Kierspe to Sliven | 1,056.18 mi (1,699.75 km) |
