| Waltham to Collegno | 3,776.19 mi (6,077.20 km) |
| Waltham to Cologno al Serio | 3,851.46 mi (6,198.32 km) |
| Waltham to Cologno Monzese | 3,835.21 mi (6,172.17 km) |
| Waltham to Colorno | 3,902.06 mi (6,279.75 km) |
| Waltham to Comacchio | 3,986.89 mi (6,416.29 km) |
| Waltham to Comiso | 4,379.26 mi (7,047.73 km) |
| Waltham to Como | 3,817.93 mi (6,144.37 km) |
| Waltham to Concordia Sagittaria | 3,978.64 mi (6,403.00 km) |
| Waltham to Concorezzo | 3,835.70 mi (6,172.96 km) |
| Waltham to Conegliano | 3,951.38 mi (6,359.13 km) |
| Waltham to Conselice | 3,978.23 mi (6,402.34 km) |
| Waltham to Conselve | 3,955.26 mi (6,365.37 km) |
| Waltham to Conversano | 4,335.21 mi (6,976.84 km) |
| Waltham to Copertino | 4,402.88 mi (7,085.74 km) |
| Waltham to Copparo | 3,965.15 mi (6,381.29 km) |
