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 gr = 1.0205e-5 st
1 st = 97,990.137 gr
例子:
将15 粮食转换为石头：
15 gr = 0 st
| 粮食 | 石头 |
|---|---|
| 0.01 gr | 1.0205e-7 st |
| 0.1 gr | 1.0205e-6 st |
| 1 gr | 1.0205e-5 st |
| 2 gr | 2.0410e-5 st |
| 3 gr | 3.0615e-5 st |
| 5 gr | 5.1026e-5 st |
| 10 gr | 0 st |
| 20 gr | 0 st |
| 30 gr | 0 st |
| 40 gr | 0 st |
| 50 gr | 0.001 st |
| 60 gr | 0.001 st |
| 70 gr | 0.001 st |
| 80 gr | 0.001 st |
| 90 gr | 0.001 st |
| 100 gr | 0.001 st |
| 250 gr | 0.003 st |
| 500 gr | 0.005 st |
| 750 gr | 0.008 st |
| 1000 gr | 0.01 st |
| 10000 gr | 0.102 st |
| 100000 gr | 1.021 st |
规则