| 12.2 in * | 2.54 cm | = 30.988 cm | 
| 1 in | 
| Matavimo vienetas | Ilgiai | 
|---|---|
| Nanometras | 309880000.0 nm | 
| Mikrometras | 309880.0 µm | 
| Milimetras | 309.88 mm | 
| Centimetras | 30.988 cm | 
| Colis | 12.2 in | 
| Pėda | 1.0166666667 ft | 
| Yard | 0.3388888889 yd | 
| Metras | 0.30988 m | 
| Kilometras | 0.00030988 km | 
| Mylia | 0.0001925505 mi | 
| Jūrmylė | 0.0001673218 nmi | 
