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 st = 97,990.137 gr
1 gr = 1.0205e-5 st
例子:
将15 石头转换为粮食：
15 st = 1,469,852.049 gr
| 石头 | 粮食 |
|---|---|
| 0.01 st | 979.901 gr |
| 0.1 st | 9,799.014 gr |
| 1 st | 97,990.137 gr |
| 2 st | 195,980.273 gr |
| 3 st | 293,970.41 gr |
| 5 st | 489,950.683 gr |
| 10 st | 979,901.366 gr |
| 20 st | 1,959,802.732 gr |
| 30 st | 2,939,704.099 gr |
| 40 st | 3,919,605.465 gr |
| 50 st | 4,899,506.831 gr |
| 60 st | 5,879,408.197 gr |
| 70 st | 6,859,309.564 gr |
| 80 st | 7,839,210.93 gr |
| 90 st | 8,819,112.296 gr |
| 100 st | 9,799,013.662 gr |
| 250 st | 24,497,534.156 gr |
| 500 st | 48,995,068.312 gr |
| 750 st | 73,492,602.468 gr |
| 1000 st | 97,990,136.624 gr |
| 10000 st | 979,901,366.244 gr |
| 100000 st | 9,799,013,662.442 gr |
规则