| 6400 mm * | 0.1 cm | = 640.0 cm | 
| 1 mm | 
| Ölçü birimleri | Uzunluk birimleri | 
|---|---|
| Nanometre | 6400000000.0 nm | 
| Mikrometre | 6400000.0 µm | 
| Milimetre | 6400.0 mm | 
| Santimetre | 640.0 cm | 
| İnç | 251.968503937 in | 
| Fit | 20.9973753281 ft | 
| Yarda | 6.9991251094 yd | 
| Metre | 6.4 m | 
| Kilometre | 0.0064 km | 
| Mil | 0.0039767756 mi | 
| Deniz mili | 0.0034557235 nmi | 
