| 20.3 in * | 0.0254 m | = 0.51562 m | 
| 1 in | 
| Natuurkundige eenheid | Lengte | 
|---|---|
| Nanometer | 515620000.0 nm | 
| Micrometer | 515620.0 µm | 
| Millimeter | 515.62 mm | 
| Centimeter | 51.562 cm | 
| Inch | 20.3 in | 
| Voet | 1.6916666667 ft | 
| Yard | 0.5638888889 yd | 
| Meter | 0.51562 m | 
| Kilometer | 0.00051562 km | 
| Mijl | 0.0003203914 mi | 
| Zeemijl | 0.0002784125 nmi | 
