| Cities | Distance |
|---|---|
| Boom to Oestrich-Winkel | 176.20 mi (283.56 km) |
| Boom to Offenburg | 240.80 mi (387.53 km) |
| Boom to Oftersheim | 220.78 mi (355.31 km) |
| Boom to Ohrdruf | 277.55 mi (446.67 km) |
| Boom to Ohringen | 261.83 mi (421.38 km) |
| Boom to Olbernhau | 391.75 mi (630.46 km) |
| Boom to Olching | 369.07 mi (593.95 km) |
| Boom to Oldenburg | 216.55 mi (348.50 km) |
| Boom to Oldenburg in Holstein | 351.71 mi (566.02 km) |
| Boom to Olfen | 137.19 mi (220.78 km) |
| Boom to Olpe | 150.63 mi (242.41 km) |
| Boom to Olsberg | 179.09 mi (288.21 km) |
| Boom to Oranienburg | 394.95 mi (635.60 km) |
| Boom to Ortenberg | 211.13 mi (339.78 km) |
| Boom to Oschatz | 378.55 mi (609.22 km) |