| Grinon to Chojnice | 1,363.48 mi (2,194.32 km) |
| Grinon to Chojnow | 1,215.12 mi (1,955.55 km) |
| Grinon to Chorzow | 1,301.50 mi (2,094.57 km) |
| Grinon to Choszczno | 1,270.67 mi (2,044.95 km) |
| Grinon to Chrzanow | 1,315.31 mi (2,116.79 km) |
| Grinon to Ciechanow | 1,443.25 mi (2,322.68 km) |
| Grinon to Ciechocinek | 1,376.27 mi (2,214.89 km) |
| Grinon to Cieszyn | 1,273.68 mi (2,049.78 km) |
| Grinon to Czarna Bialostocka | 1,555.22 mi (2,502.88 km) |
| Grinon to Czarnkow | 1,298.79 mi (2,090.19 km) |
| Grinon to Czechowice-Dziedzice | 1,293.35 mi (2,081.45 km) |
| Grinon to Czeladz | 1,307.81 mi (2,104.72 km) |
| Grinon to Czersk Pomorski | 1,381.42 mi (2,223.18 km) |
| Grinon to Czestochowa | 1,322.30 mi (2,128.04 km) |
| Grinon to Czluchow | 1,356.00 mi (2,182.27 km) |
