| 840 lbs * | 0.45359237 kg | = 381.0175908 kg | 
| 1 lbs | 
| Unitat de mesura | Massa | 
|---|---|
| Microgram | 3.810175908e+11 µg | 
| Mil·ligram | 381017590.8 mg | 
| Gram | 381017.5908 g | 
| Unça | 13440.0 oz | 
| Lliura | 840.0 lbs | 
| Quilogram | 381.0175908 kg | 
| Stone | 60.0 st | 
| Tona De EUA | 0.42 ton | 
| Tona | 0.3810175908 t | 
| Tona Imperial | 0.375 Long tons | 
