| Waltham to Brown Deer (Wisconsin) | 848.85 mi (1,366.09 km) |
| Waltham to Brownsburg (Indiana) | 806.53 mi (1,297.99 km) |
| Waltham to Brownsville (Florida) | 1,253.32 mi (2,017.02 km) |
| Waltham to Brownsville (Texas) | 1,864.96 mi (3,001.36 km) |
| Waltham to Brownwood (Texas) | 1,687.58 mi (2,715.90 km) |
| Waltham to Brunswick (Georgia) | 959.81 mi (1,544.66 km) |
| Waltham to Brunswick (Ohio) | 549.99 mi (885.12 km) |
| Waltham to Brushy Creek (Texas) | 1,675.54 mi (2,696.51 km) |
| Waltham to Bryan (Texas) | 1,604.68 mi (2,582.48 km) |
| Waltham to Bryant (Arkansas) | 1,263.66 mi (2,033.66 km) |
| Waltham to Bryn Mawr-Skyway (Washington) | 2,473.56 mi (3,980.82 km) |
| Waltham to Buckeye (Arizona) | 2,315.44 mi (3,726.34 km) |
| Waltham to Buckhall (Virginia) | 412.40 mi (663.70 km) |
| Waltham to Bucyrus (Ohio) | 615.34 mi (990.30 km) |
| Waltham to Buda (Texas) | 1,698.95 mi (2,734.20 km) |
