| Rathfarnham to Popovo | 1,626.02 mi (2,616.82 km) |
| Rathfarnham to Provadia | 1,681.45 mi (2,706.02 km) |
| Rathfarnham to Radnevo | 1,658.04 mi (2,668.35 km) |
| Rathfarnham to Radomir | 1,528.61 mi (2,460.05 km) |
| Rathfarnham to Rakitovo | 1,598.23 mi (2,572.10 km) |
| Rathfarnham to Rakovski | 1,619.89 mi (2,606.95 km) |
| Rathfarnham to Razgrad | 1,630.00 mi (2,623.24 km) |
| Rathfarnham to Razlog | 1,578.37 mi (2,540.14 km) |
| Rathfarnham to Ruse | 1,595.48 mi (2,567.68 km) |
| Rathfarnham to Samokov | 1,561.82 mi (2,513.50 km) |
| Rathfarnham to Sandanski | 1,585.29 mi (2,551.28 km) |
| Rathfarnham to Sevlievo | 1,594.36 mi (2,565.88 km) |
| Rathfarnham to Shumen | 1,657.08 mi (2,666.81 km) |
| Rathfarnham to Silistra | 1,636.90 mi (2,634.33 km) |
| Rathfarnham to Sliven | 1,657.78 mi (2,667.94 km) |
