| Round Rock to Hohenhameln | 5,254.39 mi (8,456.12 km) |
| Round Rock to Hohenkirchen-Siegertsbrunn | 5,476.91 mi (8,814.24 km) |
| Round Rock to Hohenmolsen | 5,368.89 mi (8,640.40 km) |
| Round Rock to Hohenstein-Ernstthal | 5,404.99 mi (8,698.49 km) |
| Round Rock to Hohr-Grenzhausen | 5,232.52 mi (8,420.92 km) |
| Round Rock to Holzgerlingen | 5,348.75 mi (8,607.98 km) |
| Round Rock to Holzkirchen | 5,480.82 mi (8,820.53 km) |
| Round Rock to Holzminden | 5,247.94 mi (8,445.74 km) |
| Round Rock to Holzwickede | 5,192.74 mi (8,356.90 km) |
| Round Rock to Homburg | 5,259.43 mi (8,464.23 km) |
| Round Rock to Hoppegarten | 5,371.12 mi (8,643.98 km) |
| Round Rock to Horb am Neckar | 5,343.51 mi (8,599.54 km) |
| Round Rock to Horn-Bad Meinberg | 5,228.52 mi (8,414.49 km) |
| Round Rock to Horstel | 5,163.56 mi (8,309.94 km) |
| Round Rock to Hosbach | 5,305.84 mi (8,538.93 km) |
