| Mason City to Chesterfield | 3,986.62 mi (6,415.84 km) |
| Mason City to Chichester | 4,096.07 mi (6,591.98 km) |
| Mason City to Chigwell | 4,098.46 mi (6,595.83 km) |
| Mason City to Childwall | 3,929.12 mi (6,323.30 km) |
| Mason City to Chilwell | 4,004.72 mi (6,444.97 km) |
| Mason City to Chingford | 4,096.14 mi (6,592.10 km) |
| Mason City to Chippenham | 4,024.20 mi (6,476.32 km) |
| Mason City to Chislehurst | 4,106.30 mi (6,608.45 km) |
| Mason City to Choppington | 3,914.99 mi (6,300.57 km) |
| Mason City to Chorley | 3,929.28 mi (6,323.56 km) |
| Mason City to Chorleywood | 4,076.26 mi (6,560.11 km) |
| Mason City to Christchurch | 4,062.77 mi (6,538.39 km) |
| Mason City to Churchdown | 4,007.32 mi (6,449.16 km) |
| Mason City to Cinderford | 3,997.25 mi (6,432.96 km) |
| Mason City to Cirencester | 4,020.42 mi (6,470.25 km) |
