| Mason City to Chateaubriant | 4,189.59 mi (6,742.50 km) |
| Mason City to Chateaudun | 4,280.39 mi (6,888.62 km) |
| Mason City to Chateauneuf-les-Martigues | 4,621.13 mi (7,436.98 km) |
| Mason City to Chateaurenard | 4,587.66 mi (7,383.12 km) |
| Mason City to Chateauroux | 4,343.72 mi (6,990.55 km) |
| Mason City to Chatellerault | 4,299.04 mi (6,918.64 km) |
| Mason City to Chatenay-Malabry | 4,288.62 mi (6,901.87 km) |
| Mason City to Chatillon | 4,287.70 mi (6,900.39 km) |
| Mason City to Chatou | 4,279.21 mi (6,886.73 km) |
| Mason City to Chaumont | 4,421.50 mi (7,115.71 km) |
| Mason City to Chauny | 4,290.00 mi (6,904.08 km) |
| Mason City to Chaville | 4,283.57 mi (6,893.74 km) |
| Mason City to Checy | 4,313.55 mi (6,941.99 km) |
| Mason City to Chelles | 4,296.00 mi (6,913.74 km) |
| Mason City to Chennevieres-sur-Marne | 4,296.89 mi (6,915.17 km) |
