| 840 m * | 3.280839895 ft | = 2755.90551181 ft | 
| 1 m | 
| Mittayksikkö | Yksikön pituus | 
|---|---|
| Nanometri | 8.4e+11 nm | 
| Mikrometri | 840000000.0 µm | 
| Millimetri | 840000.0 mm | 
| Senttimetri | 84000.0 cm | 
| Tuuma | 33070.8661417 in | 
| Jalka | 2755.90551181 ft | 
| Jaardi | 918.635170604 yd | 
| Metri | 840.0 m | 
| Kilometri | 0.84 km | 
| Maili | 0.5219518015 mi | 
| Merimaili | 0.4535637149 nmi | 
