| 840 km * | 0.6213711922 mi | = 521.951801479 mi | 
| 1 km | 
| Ölçü vahidləri | Uzunluğu vahid | 
|---|---|
| Nanometr | 8.4e+14 nm | 
| Mikrometr | 8.4e+11 µm | 
| Millimetr | 840000000.0 mm | 
| Santimetr | 84000000.0 cm | 
| Düym | 33070866.1417 in | 
| Ayaq | 2755905.51181 ft | 
| Yard | 918635.170604 yd | 
| Metr | 840000.0 m | 
| Kilometr | 840.0 km | 
| Mil | 521.951801479 mi | 
| Deniz mili | 453.563714903 nmi | 
