| 18 ft * | 12.0 in | = 216.0 in | 
| 1 ft | 
| Måleenhed | Længde | 
|---|---|
| Nanometer | 5486400000.0 nm | 
| Mikrometer | 5486400.0 µm | 
| Nillimeter | 5486.4 mm | 
| Centimeter | 548.64 cm | 
| Tomme | 216.0 in | 
| Fod | 18.0 ft | 
| Yard | 6.0 yd | 
| Meter | 5.4864 m | 
| Kilometer | 0.0054864 km | 
| Nil | 0.0034090909 mi | 
| Sømil | 0.002962419 nmi | 
