| Idanha-a-Nova to Bentley | 984.29 mi (1,584.06 km) |
| Idanha-a-Nova to Berkhampstead | 878.17 mi (1,413.28 km) |
| Idanha-a-Nova to Berwick-Upon-Tweed | 1,121.05 mi (1,804.15 km) |
| Idanha-a-Nova to Beverley | 1,013.47 mi (1,631.02 km) |
| Idanha-a-Nova to Bewdley | 891.92 mi (1,435.41 km) |
| Idanha-a-Nova to Bexleyheath | 872.19 mi (1,403.65 km) |
| Idanha-a-Nova to Bicester | 877.33 mi (1,411.92 km) |
| Idanha-a-Nova to Bickenhill | 903.78 mi (1,454.50 km) |
| Idanha-a-Nova to Bickley | 866.80 mi (1,394.98 km) |
| Idanha-a-Nova to Biddulph | 942.89 mi (1,517.43 km) |
| Idanha-a-Nova to Bideford | 780.59 mi (1,256.23 km) |
| Idanha-a-Nova to Bidston | 951.93 mi (1,531.99 km) |
| Idanha-a-Nova to Biggleswade | 904.00 mi (1,454.84 km) |
| Idanha-a-Nova to Billericay | 888.07 mi (1,429.21 km) |
| Idanha-a-Nova to Billingham | 1,052.07 mi (1,693.14 km) |
