The Capsule Guy stocks eight sizes of capsules. The largest is #000 and the smallest is #5.
Which capsule size is best for your needs depends on a few things. Most people want to be able to use the larger size capsule so they don’t have to take a lot of capsules. If you have a hard time swallowing larger capsules, then you may not want to use the “00” size.
#000 - 1.37ml 26mm long Approx 3 capsules per teaspoon.
#00 - 0.9ml 23mm long Approx 5 capsules per teaspoon.
#0 - 0.7ml 21mm long Approx 7 capsules per teaspoon.
#1 - 0.5ml 19mm long Approx 9 capsules per teaspoon.
#2 - 0.4ml 18mm long Approx 11 capsules per teaspoon.
#3 - 0.3ml 16mm long Approx 15 capsules per teaspoon.
#4 - 0.23ml 14mm long Approx 20 capsules per teaspoon.
#5 - 0.13ml 11mm long Approx 35 capsules per teaspoon.
Most herbal capsules you buy in bottles are #00 or #0 size.
The weight of each filled capsule will depend on the density of the powder you are using, and how tightly you pack the ingredients into the capsules. If you need to adjust the weight of your active ingredients you can use the tamper more or less. For example, filling a #00 capsule with turmeric and packing it tightly may allow you to get 600 mg per capsule. If you only want to take approximately half that (or 350 mg.) at a time, do not use the tamper to compress the powder in the capsules. Or you can combine the turmeric with other beneficial ingredients such as 5% black pepper.