| Howard to Butzbach | 4,201.83 mi (6,762.19 km) |
| Howard to Buxtehude | 4,115.96 mi (6,624.00 km) |
| Howard to Cadolzburg | 4,321.15 mi (6,954.22 km) |
| Howard to Calbe | 4,250.17 mi (6,839.99 km) |
| Howard to Calw | 4,274.71 mi (6,879.48 km) |
| Howard to Castrop-Rauxel | 4,109.66 mi (6,613.86 km) |
| Howard to Celle | 4,162.93 mi (6,699.58 km) |
| Howard to Cham | 4,394.30 mi (7,071.95 km) |
| Howard to Chemnitz | 4,334.25 mi (6,975.31 km) |
| Howard to Clausthal-Zellerfeld | 4,204.89 mi (6,767.11 km) |
| Howard to Cloppenburg | 4,084.41 mi (6,573.22 km) |
| Howard to Coburg | 4,290.43 mi (6,904.78 km) |
| Howard to Coesfeld | 4,088.74 mi (6,580.19 km) |
| Howard to Cologne | 4,120.80 mi (6,631.79 km) |
| Howard to Coswig | 4,344.19 mi (6,991.30 km) |
