| Martha Lake to Cernavoda | 5,816.53 mi (9,360.80 km) |
| Martha Lake to Chitila | 5,770.55 mi (9,286.80 km) |
| Martha Lake to Cisnadie | 5,660.45 mi (9,109.62 km) |
| Martha Lake to Cluj-Napoca | 5,582.79 mi (8,984.63 km) |
| Martha Lake to Codlea | 5,684.48 mi (9,148.28 km) |
| Martha Lake to Comanesti | 5,654.42 mi (9,099.91 km) |
| Martha Lake to Comarnic | 5,716.55 mi (9,199.90 km) |
| Martha Lake to Constanta | 5,837.54 mi (9,394.61 km) |
| Martha Lake to Corabia | 5,791.23 mi (9,320.08 km) |
| Martha Lake to Costesti | 5,740.55 mi (9,238.53 km) |
| Martha Lake to Covasna | 5,687.46 mi (9,153.08 km) |
| Martha Lake to Craiova | 5,742.62 mi (9,241.85 km) |
| Martha Lake to Cristuru Secuiesc | 5,639.06 mi (9,075.19 km) |
| Martha Lake to Cugir | 5,637.70 mi (9,073.00 km) |
| Martha Lake to Cumpana | 5,839.79 mi (9,398.24 km) |
