| Giffnock to Clarkston (Georgia) | 3,951.74 mi (6,359.72 km) |
| Giffnock to Clarksville (Indiana) | 3,777.42 mi (6,079.17 km) |
| Giffnock to Clarksville (Tennessee) | 3,925.07 mi (6,316.80 km) |
| Giffnock to Clawson (Michigan) | 3,473.01 mi (5,589.27 km) |
| Giffnock to Clay (Alabama) | 4,047.04 mi (6,513.07 km) |
| Giffnock to Clayton (California) | 4,999.89 mi (8,046.54 km) |
| Giffnock to Clayton (Missouri) | 3,927.74 mi (6,321.09 km) |
| Giffnock to Clayton (North Carolina) | 3,636.88 mi (5,852.99 km) |
| Giffnock to Clayton (Ohio) | 3,646.81 mi (5,868.97 km) |
| Giffnock to Clearfield (Utah) | 4,525.12 mi (7,282.47 km) |
| Giffnock to Clearlake (California) | 4,959.68 mi (7,981.84 km) |
| Giffnock to Clearwater (Florida) | 4,203.54 mi (6,764.94 km) |
| Giffnock to Cleburne (Texas) | 4,516.32 mi (7,268.31 km) |
| Giffnock to Clemmons (North Carolina) | 3,691.70 mi (5,941.22 km) |
| Giffnock to Clemson (South Carolina) | 3,852.59 mi (6,200.15 km) |
