| Thouare-sur-Loire to Popovo | 1,364.02 mi (2,195.17 km) |
| Thouare-sur-Loire to Provadia | 1,424.45 mi (2,292.43 km) |
| Thouare-sur-Loire to Radnevo | 1,377.69 mi (2,217.18 km) |
| Thouare-sur-Loire to Radomir | 1,231.48 mi (1,981.87 km) |
| Thouare-sur-Loire to Rakitovo | 1,300.42 mi (2,092.82 km) |
| Thouare-sur-Loire to Rakovski | 1,332.80 mi (2,144.94 km) |
| Thouare-sur-Loire to Razgrad | 1,372.79 mi (2,209.29 km) |
| Thouare-sur-Loire to Razlog | 1,274.69 mi (2,051.42 km) |
| Thouare-sur-Loire to Ruse | 1,339.48 mi (2,155.68 km) |
| Thouare-sur-Loire to Samokov | 1,265.66 mi (2,036.88 km) |
| Thouare-sur-Loire to Sandanski | 1,275.65 mi (2,052.96 km) |
| Thouare-sur-Loire to Sevlievo | 1,319.78 mi (2,123.99 km) |
| Thouare-sur-Loire to Shumen | 1,398.49 mi (2,250.66 km) |
| Thouare-sur-Loire to Silistra | 1,393.95 mi (2,243.35 km) |
| Thouare-sur-Loire to Sliven | 1,385.93 mi (2,230.43 km) |
