A troy pound is equal to 12 troy ounces and to 5,760 grains that is exactly 373.2417216 grams or The troy pound is 5760 grains (≈373.24 g, 12 oz t), while an avoirdupois pound is approximately 21.53% heavier at 7000 grains (≈ 453.59 g). Troy weights were used in England by jewelers.
										
The system called Tower weight was the more general name for King Offa's pound. 
							   
| Standard Units | |
|---|---|
| Carats (ct) | {{ct}} | 
| Grams (gm) | {{gm}} | 
| Kilograms (kg) | {{kg}} | 
| Metric Tons (t) | {{t}} | 
| Micrograms | {{micrograms}} | 
| Milligrams | {{mg}} | 
| Ounces (oz) | {{oz}} | 
| Pounds (lb) | {{lb}} | 
| Other Units | |
| Grain (gr) | {{gr}} | 
| Pennyweight (dwt) | {{dwt}} | 
| Stones (st) | {{st}} | 
| Troy Ounces (toz) | {{toz}} |