| Idrija to Brownsburg (Indiana) | 4,741.77 mi (7,631.14 km) |
| Idrija to Brownsville (Florida) | 5,149.30 mi (8,286.99 km) |
| Idrija to Brownsville (Texas) | 5,874.95 mi (9,454.81 km) |
| Idrija to Brownwood (Texas) | 5,633.48 mi (9,066.21 km) |
| Idrija to Brunswick (Georgia) | 4,949.54 mi (7,965.52 km) |
| Idrija to Brunswick (Ohio) | 4,497.81 mi (7,238.53 km) |
| Idrija to Brushy Creek (Texas) | 5,649.00 mi (9,091.19 km) |
| Idrija to Bryan (Texas) | 5,588.11 mi (8,993.19 km) |
| Idrija to Bryant (Arkansas) | 5,234.02 mi (8,423.34 km) |
| Idrija to Bryn Mawr-Skyway (Washington) | 5,456.79 mi (8,781.85 km) |
| Idrija to Buckeye (Arizona) | 6,019.88 mi (9,688.05 km) |
| Idrija to Buckhall (Virginia) | 4,432.12 mi (7,132.82 km) |
| Idrija to Bucyrus (Ohio) | 4,563.22 mi (7,343.79 km) |
| Idrija to Buda (Texas) | 5,676.19 mi (9,134.95 km) |
| Idrija to Buena Park (California) | 6,160.76 mi (9,914.79 km) |
