| Sirnak to Popovo | 941.46 mi (1,515.13 km) |
| Sirnak to Provadia | 880.88 mi (1,417.64 km) |
| Sirnak to Radnevo | 934.12 mi (1,503.32 km) |
| Sirnak to Radomir | 1,086.05 mi (1,747.83 km) |
| Sirnak to Rakitovo | 1,021.32 mi (1,643.65 km) |
| Sirnak to Rakovski | 981.81 mi (1,580.07 km) |
| Sirnak to Razgrad | 932.55 mi (1,500.80 km) |
| Sirnak to Razlog | 1,051.13 mi (1,691.62 km) |
| Sirnak to Ruse | 966.00 mi (1,554.62 km) |
| Sirnak to Samokov | 1,052.78 mi (1,694.29 km) |
| Sirnak to Sandanski | 1,056.83 mi (1,700.80 km) |
| Sirnak to Sevlievo | 987.99 mi (1,590.02 km) |
| Sirnak to Shumen | 906.85 mi (1,459.44 km) |
| Sirnak to Silistra | 914.05 mi (1,471.01 km) |
| Sirnak to Sliven | 921.98 mi (1,483.78 km) |
