| 12.2 in * | 2.54 cm | = 30.988 cm | 
| 1 in | 
| Unidad de medida | Longitudes | 
|---|---|
| Nanómetro | 309880000.0 nm | 
| Micrómetro | 309880.0 µm | 
| Milímetro | 309.88 mm | 
| Centímetro | 30.988 cm | 
| Pulgada | 12.2 in | 
| Pie | 1.0166666667 ft | 
| Yarda | 0.3388888889 yd | 
| Metro | 0.30988 m | 
| Kilómetro | 0.00030988 km | 
| Milla | 0.0001925505 mi | 
| Milla náutica | 0.0001673218 nmi | 
