| 680 ft * | 12.0 in | = 8160.0 in | 
| 1 ft | 
| Natuurkundige eenheid | Lengte | 
|---|---|
| Nanometer | 2.07264e+11 nm | 
| Micrometer | 207264000.0 µm | 
| Millimeter | 207264.0 mm | 
| Centimeter | 20726.4 cm | 
| Inch | 8160.0 in | 
| Voet | 680.0 ft | 
| Yard | 226.666666667 yd | 
| Meter | 207.264 m | 
| Kilometer | 0.207264 km | 
| Mijl | 0.1287878788 mi | 
| Zeemijl | 0.1119136069 nmi | 
