Capsule size chart fill weight and capacity comparison

We get a lot of questions asking “what are the different capsule sizes?”, “how much powder does a certain size capsule hold and which one would I need to fill a certain amount of powder?” “what are capsule sizes?”, So here is capsule sizes explained in a simple guide and gelatin vegetarian capsule size chart.

What Capsule Size Is Right For You?

Because of all these different capsule sizes, we supply it might be hard to figure out which size is right for your needs. 

We have provided a more detailed infographic chart on the specifications on the different capsules we carry for both gelatin and vegetable. 

For most applications, a size 00 or size 0 will be sufficient and are often classed as standard capsule sizes.. They are the most common sizes used by all because a size 0 holds about 500mg or 0.5 grams of powder while a size 00 holds about 735 mg or 0.735 grams.

Large Capsule

Size 000 is the largest capsule size for human use, on average this holds about 1000mg, but that all depends on powder density. Because of this, it is best to check the powder you wish to fill mesh size and density. please check the capsule size chart below for more details

Average Size Capsules

00 capsule capacity holds about 750mg, because of the size and great fill weight it is one of the most common capsule sizes used in the supplement industry, the volume of the capsule is 0.93ml and capsule size 00 is 23.6mm big locked.

how much does a size 0 capsule hold? about 500mg, because of the great average dose size, it is one of the most common capsule sizes used in the pharmaceutical and beauty industry. the volume of the capsule is 0.68ml and capsule size 0 is 21.3mm locked length.

Capsule Size 0 vs 00? when considering which capsule to use, we would need to know what fill weight we want to achieve, and if we want to use any bulking agents, what capsule machine would be in use.

Small capsules

Size 1 holds about 400mg. and is a great size for those who have trouble with swallowing capsules but with only a 0.50ml volume fill density is not the best for consumers wanting high dosage.

Size 2 holds about 300mg. and again is a great size to use if you have trouble swallowing capsules,

because of the small size capsule makes this really hard to fill with powder and tricky to use. Because of this, makes it not a popular buying choice for consumers but one of the cheapest due to lower material costs.

Capsule Size and fill weight

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
Volume (ml)1.370.930.680.500.37
Lock Length +/- 0.7mm26.1423.621.319.217.5
Capsule Capacity (mg)

Capsule Size Chart

capsule size chart
Capsule Sizes on Pinterest
Download CapsuleSizeChart.pdf here

50 thoughts on “Capsule size chart fill weight and capacity comparison”

  1. I only need to put roughly 3 mg inside of a capsule, would a size 2 be my best bet ? It’s a time amount.

  2. So if, for example, I wanted to put 1000mg ascorbic acid powder in a capsule, would size #000 be best, or would I be better splitting into two #0 capsules? You refer to mesh size of a powder – what is mesh size and how do you calculate it if you don’t know it? Thanks

  3. Could you please tell me what size capsule I would need for 1gm resveratrol and 1mg NMN (nicotinamide mononucleotide)?
    I’m sorry but am unaware of mwsh size.

    1. Hi Steve, How did you go with this please? I currently take the same dosage ( adding powders to yoghurt ) Capsules seem easier but not sure if it will be as effective without the fat content added to the resveratrol . Thanks

  4. If I need to put ONE QUARTER TEASPOON in a capsule as a daily dose for my dog, of very fine powder (Olive Leaf powder), what size capsule would be best please?

  5. I purchase whole milk thistle seeds and grind them into a fine powder at home, how many mg would fill a “00” size capsule?

  6. I’m hoping someone can help. I need a capsule to put 1/2 gram of marijuana powder in. I am so confused. Can someone help me.

  7. William Brian Santino

    Hello I have to get capsules for my dogs meds. I am supposed to give him a dose of 0.15 of a gram 4 times daily. The medication is a extremely fine powder and I am assuming tastes really bad because when mix it in his food he won’t eat it. Could you please tell me what size to order. Thank you.

  8. hi i need to know how much the empty 00 capsule weighs. That isnt the volume is it? Im thinking volume is how much space inside it… Thanks a ton!

  9. Rina Chaya Lebovic

    I have Mentabiotics powder from Amare Global that I need to encapsulate for Passover consumption. One dose is a scoop, which is 7 g. So would I need 7 #000 capsules full to get the full dose?
    I don’t know what mesh size is, nor the powder density.
    Thank you!

  10. I am so confused about what size capsules to use with this formulation for 100 capsules

    I am needing to make 100 capsules that are 4.5mg each of naltrexone.
    The formula is as follows:
    naltrexone Hcl (450mg)
    Avicel ph 105 (13.9 g)
    this will yield 100 capsules but I have no idea about what capsule size to use. 00? 0? please help.

  11. Hello,
    i have a powder that is 95% pass at 80 mesh. I want to pack the powder into capsules into 500mg. What size capsule would be best for this powder. Would really appreciate the help.

  12. Im still not sure…. right now i have to use four #4 capsules with tinture twice a day. I want to cut the quanity. i did get some #000 but they are huge!!! I think too big.

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