| Mason City to Chambray-les-Tours | 4,285.17 mi (6,896.32 km) |
| Mason City to Chamonix-Mont-Blanc | 4,578.16 mi (7,367.84 km) |
| Mason City to Champigny-sur-Marne | 4,295.46 mi (6,912.87 km) |
| Mason City to Champs-Sur-Marne | 4,297.30 mi (6,915.83 km) |
| Mason City to Chanteloup-les-Vignes | 4,271.01 mi (6,873.53 km) |
| Mason City to Chantepie | 4,166.26 mi (6,704.94 km) |
| Mason City to Chantilly | 4,278.86 mi (6,886.17 km) |
| Mason City to Chaponost | 4,506.19 mi (7,252.01 km) |
| Mason City to Charenton-le-Pont | 4,290.96 mi (6,905.63 km) |
| Mason City to Charleville-Mezieres | 4,338.39 mi (6,981.96 km) |
| Mason City to Chartres | 4,270.87 mi (6,873.30 km) |
| Mason City to Chassieu | 4,513.36 mi (7,263.55 km) |
| Mason City to Chateau-d'Olonne | 4,221.53 mi (6,793.90 km) |
| Mason City to Chateau-Gontier | 4,211.46 mi (6,777.70 km) |
| Mason City to Chateau-Thierry | 4,319.36 mi (6,951.34 km) |
