| Irthlingborough to Belper | 60.61 mi (97.54 km) |
| Irthlingborough to Bentley | 87.60 mi (140.98 km) |
| Irthlingborough to Berkhampstead | 39.04 mi (62.82 km) |
| Irthlingborough to Berwick-Upon-Tweed | 244.60 mi (393.65 km) |
| Irthlingborough to Beverley | 105.38 mi (169.59 km) |
| Irthlingborough to Bewdley | 71.88 mi (115.68 km) |
| Irthlingborough to Bexleyheath | 67.82 mi (109.15 km) |
| Irthlingborough to Bicester | 37.09 mi (59.69 km) |
| Irthlingborough to Bickenhill | 47.52 mi (76.48 km) |
| Irthlingborough to Bickley | 69.77 mi (112.28 km) |
| Irthlingborough to Biddulph | 85.23 mi (137.17 km) |
| Irthlingborough to Bideford | 178.57 mi (287.38 km) |
| Irthlingborough to Bidston | 126.92 mi (204.26 km) |
| Irthlingborough to Biggleswade | 22.40 mi (36.05 km) |
| Irthlingborough to Billericay | 65.14 mi (104.83 km) |
