| Efringen-Kirchen to Popovo | 948.91 mi (1,527.12 km) |
| Efringen-Kirchen to Provadia | 1,008.56 mi (1,623.12 km) |
| Efringen-Kirchen to Radnevo | 968.00 mi (1,557.84 km) |
| Efringen-Kirchen to Radomir | 827.13 mi (1,331.13 km) |
| Efringen-Kirchen to Rakitovo | 896.96 mi (1,443.53 km) |
| Efringen-Kirchen to Rakovski | 925.19 mi (1,488.95 km) |
| Efringen-Kirchen to Razgrad | 956.64 mi (1,539.57 km) |
| Efringen-Kirchen to Razlog | 873.76 mi (1,406.18 km) |
| Efringen-Kirchen to Ruse | 922.86 mi (1,485.21 km) |
| Efringen-Kirchen to Samokov | 861.18 mi (1,385.94 km) |
| Efringen-Kirchen to Sandanski | 877.74 mi (1,412.59 km) |
| Efringen-Kirchen to Sevlievo | 907.79 mi (1,460.95 km) |
| Efringen-Kirchen to Shumen | 982.80 mi (1,581.67 km) |
| Efringen-Kirchen to Silistra | 975.31 mi (1,569.60 km) |
| Efringen-Kirchen to Sliven | 973.60 mi (1,566.86 km) |
