| 42 ft * | 30.48 cm | = 1280.16 cm | 
| 1 ft | 
| Unidad de medida | Longitudes | 
|---|---|
| Nanómetro | 12801600000.0 nm | 
| Micrómetro | 12801600.0 µm | 
| Milímetro | 12801.6 mm | 
| Centímetro | 1280.16 cm | 
| Pulgada | 504.0 in | 
| Pie | 42.0 ft | 
| Yarda | 14.0 yd | 
| Metro | 12.8016 m | 
| Kilómetro | 0.0128016 km | 
| Milla | 0.0079545455 mi | 
| Milla náutica | 0.006912311 nmi | 
