| 840 m * | 3.280839895 ft | = 2755.90551181 ft | 
| 1 m | 
| Mjerna jedinica | Jedinica za duljinu | 
|---|---|
| Nanometar | 8.4e+11 nm | 
| mikrometar | 840000000.0 µm | 
| Milimetar | 840000.0 mm | 
| Centimetar | 84000.0 cm | 
| Palac | 33070.8661417 in | 
| Stopa | 2755.90551181 ft | 
| Jard | 918.635170604 yd | 
| Metar | 840.0 m | 
| Kilometar | 0.84 km | 
| Milja | 0.5219518015 mi | 
| Nautička milja | 0.4535637149 nmi | 
