| Oklahoma City to Carmignano | 5,360.70 mi (8,627.21 km) |
| Oklahoma City to Carovigno | 5,759.47 mi (9,268.98 km) |
| Oklahoma City to Carpenedolo | 5,272.82 mi (8,485.79 km) |
| Oklahoma City to Carpi | 5,314.70 mi (8,553.19 km) |
| Oklahoma City to Carrara | 5,313.47 mi (8,551.20 km) |
| Oklahoma City to Carugate | 5,222.52 mi (8,404.83 km) |
| Oklahoma City to Casal di Principe | 5,605.85 mi (9,021.74 km) |
| Oklahoma City to Casale Monferrato | 5,205.18 mi (8,376.93 km) |
| Oklahoma City to Casale sul Sile | 5,335.81 mi (8,587.16 km) |
| Oklahoma City to Casalecchio di Reno | 5,342.93 mi (8,598.62 km) |
| Oklahoma City to Casalgrande | 5,317.26 mi (8,557.30 km) |
| Oklahoma City to Casalmaggiore | 5,287.98 mi (8,510.18 km) |
| Oklahoma City to Casalnuovo di Napoli | 5,618.95 mi (9,042.82 km) |
| Oklahoma City to Casalpusterlengo | 5,250.18 mi (8,449.35 km) |
| Oklahoma City to Casaluce | 5,609.25 mi (9,027.22 km) |
