| 521 in * | 0.0254 m | = 13.2334 m | 
| 1 in | 
| Natuurkundige eenheid | Lengtes | 
|---|---|
| Nanometer | 13233400000.0 nm | 
| Micrometer | 13233400.0 µm | 
| Millimeter | 13233.4 mm | 
| Centimeter | 1323.34 cm | 
| Inch | 521.0 in | 
| Voet | 43.4166666667 ft | 
| Yard | 14.4722222222 yd | 
| Meter | 13.2334 m | 
| Kilometer | 0.0132334 km | 
| Mijl | 0.0082228535 mi | 
| Zeemijl | 0.0071454644 nmi | 
