| Johnston to Caltagirone | 5,354.75 mi (8,617.64 km) |
| Johnston to Caltanissetta | 5,324.79 mi (8,569.42 km) |
| Johnston to Calvisano | 4,821.50 mi (7,759.46 km) |
| Johnston to Calvizzano | 5,169.23 mi (8,319.07 km) |
| Johnston to Camaiore | 4,882.19 mi (7,857.13 km) |
| Johnston to Cameri | 4,751.02 mi (7,646.02 km) |
| Johnston to Camisano Vicentino | 4,865.12 mi (7,829.66 km) |
| Johnston to Campagna | 5,215.35 mi (8,393.30 km) |
| Johnston to Campagnano di Roma | 5,043.01 mi (8,115.95 km) |
| Johnston to Campi Bisenzio | 4,919.14 mi (7,916.59 km) |
| Johnston to Campi Salentina | 5,338.51 mi (8,591.50 km) |
| Johnston to Campiglia Marittima | 4,932.87 mi (7,938.68 km) |
| Johnston to Campobasso | 5,156.50 mi (8,298.58 km) |
| Johnston to Campobello di Licata | 5,330.30 mi (8,578.28 km) |
| Johnston to Campobello di Mazara | 5,265.35 mi (8,473.76 km) |
