| Boulder to Hazleton (Pennsylvania) | 1,532.74 mi (2,466.71 km) |
| Boulder to Healdsburg (California) | 944.80 mi (1,520.51 km) |
| Boulder to Heath (Ohio) | 1,203.60 mi (1,937.01 km) |
| Boulder to Heber (Utah) | 325.68 mi (524.13 km) |
| Boulder to Helena (Alabama) | 1,117.04 mi (1,797.70 km) |
| Boulder to Helena (Montana) | 566.93 mi (912.39 km) |
| Boulder to Hemet (California) | 780.11 mi (1,255.46 km) |
| Boulder to Henderson (Kentucky) | 960.13 mi (1,545.18 km) |
| Boulder to Henderson (Nevada) | 599.96 mi (965.55 km) |
| Boulder to Henderson (North Carolina) | 1,474.14 mi (2,372.40 km) |
| Boulder to Henderson (Texas) | 796.61 mi (1,282.02 km) |
| Boulder to Hendersonville (North Carolina) | 1,284.24 mi (2,066.79 km) |
| Boulder to Hendersonville (Tennessee) | 1,043.18 mi (1,678.83 km) |
| Boulder to Hercules (California) | 921.97 mi (1,483.77 km) |
| Boulder to Hereford (Texas) | 391.98 mi (630.83 km) |
