| 1220 in * | 2.54 cm | = 3098.8 cm | 
| 1 in | 
| Natuurkundige eenheid | Lengte-eenheid | 
|---|---|
| Nanometer | 30988000000.0 nm | 
| Micrometer | 30988000.0 µm | 
| Millimeter | 30988.0 mm | 
| Centimeter | 3098.8 cm | 
| Inch | 1220.0 in | 
| Voet | 101.666666667 ft | 
| Yard | 33.8888888889 yd | 
| Meter | 30.988 m | 
| Kilometer | 0.030988 km | 
| Mijl | 0.0192550505 mi | 
| Zeemijl | 0.0167321814 nmi | 
