质量是物理中物质的数量。它是物质的基本特性，以千克（kg）进行测量。
1 dwt = 0 st
1 st = 4,083.331 dwt
例子:
将15 轻量级转换为石头：
15 dwt = 0.004 st
| 轻量级 | 石头 |
|---|---|
| 0.01 dwt | 2.4490e-6 st |
| 0.1 dwt | 2.4490e-5 st |
| 1 dwt | 0 st |
| 2 dwt | 0 st |
| 3 dwt | 0.001 st |
| 5 dwt | 0.001 st |
| 10 dwt | 0.002 st |
| 20 dwt | 0.005 st |
| 30 dwt | 0.007 st |
| 40 dwt | 0.01 st |
| 50 dwt | 0.012 st |
| 60 dwt | 0.015 st |
| 70 dwt | 0.017 st |
| 80 dwt | 0.02 st |
| 90 dwt | 0.022 st |
| 100 dwt | 0.024 st |
| 250 dwt | 0.061 st |
| 500 dwt | 0.122 st |
| 750 dwt | 0.184 st |
| 1000 dwt | 0.245 st |
| 10000 dwt | 2.449 st |
| 100000 dwt | 24.49 st |
规则