The fill weight depends on the powder density and particle size. Some powders can be much denser than others. But it also depends on how fine the powder is. Because of this, a good way to check is to know the powders mesh size.

Capsule Size Chart | #000 | #00 | #0 | #1 | #2 | #3 | #4 | #5 |
Volume (ml) | 1.37 | 0.95 | 0.68 | 0.5 | 0.37 | 0.3 | 0.21 | 0.13 |
Lock Length +/- 0.7mm | 26.14 | 23.3 | 21.7 | 19.4 | 18 | 15.9 | 14.3 | 11.1 |
Capsule Capacity (mg) | ||||||||
0.6g/ml | 822 | 570 | 408 | 300 | 222 | 180 | 126 | 78 |
0.8g/ml | 1096 | 760 | 544 | 400 | 296 | 240 | 168 | 104 |
1.0g/ml | 1370 | 950 | 680 | 500 | 370 | 300 | 210 | 130 |
1.2g/ml | 1644 | 1140 | 816 | 600 | 444 | 360 | 252 | 156 |