Size 00 capsules are one of the most popular empty capsule sizes used for supplements, herbs, vitamins and nutritional powders. They provide an excellent balance between capsule capacity and ease of swallowing, making them widely used for both personal and commercial capsule filling.
This guide explains:
- Size 00 capsule capacity
- Approximate fill weights
- Powder density differences
- Common uses
- How to choose the right capsule size
Size 00 Capsule Capacity Chart
| Powder Type | Approximate Capacity |
|---|---|
| Light Powder | ~380 mg |
| Medium Density Powder | ~570 mg |
| Dense Powder | ~760 mg |
These values are estimates only. Actual fill weight depends on:
- powder density
- particle size
- moisture content
- packing method
What Is a Size 00 Capsule?
A size 00 capsule is one of the most commonly used empty capsule sizes in the supplement industry.
Approximate specifications:
- Volume: 0.95 ml
- Length (closed): approximately 23.3 mm
- Popular for herbs, vitamins and supplements
Size 00 capsules are available in:
- gelatin capsules
- HPMC vegetarian capsules
- coloured capsules
- clear capsules
Why Size 00 Capsules Are Popular
Size 00 capsules are widely used because they:
- hold a relatively large amount of powder
- are still reasonably easy to swallow
- work well with many supplement powders
- fit common capsule filling machines
They are often considered the standard capsule size for many supplements.
How Much Powder Fits in a Size 00 Capsule?
The amount of powder that fits inside a size 00 capsule depends mainly on powder density.
Light Powders
Examples:
- fluffy herbs
- fibre powders
- some mushroom powders
Approximate capacity:
- around 380 mg
Medium Density Powders
Examples:
- many herbal supplements
- standard supplement blends
Approximate capacity:
- around 570 mg
Dense Powders
Examples:
- minerals
- amino acids
- compact fine powders
Approximate capacity:
- around 760 mg
Common Uses for Size 00 Capsules
Size 00 capsules are commonly used for:
- herbal powders
- vitamins
- mushroom supplements
- sports supplements
- amino acids
- nutritional blends
They are suitable for both:
- manual capsule filling
- capsule filling machines
Size 00 Gelatin vs HPMC Capsules
Size 00 Gelatin Capsules
- traditional capsule material
- fast dissolving
- economical option
Size 00 HPMC Capsules
- vegetarian and vegan friendly
- plant-based
- often preferred for moisture-sensitive ingredients
Both are widely used for supplement applications.
Is Size 00 the Best Capsule Size?
Size 00 is one of the most versatile capsule sizes because it offers:
- good capacity
- reasonable swallowing comfort
- compatibility with many powders
However:
- larger doses may require size 000 capsules
- smaller doses may use size 0 or size 1 capsules
How to Fill Size 00 Capsules
Size 00 capsules can be filled:
- manually
- using capsule filling machines
- using capsule tampers
For best results:
- use dry powders
- tamp evenly
- avoid overfilling
Size 00 Capsule Filling Machines
Many capsule filling machines are designed specifically for size 00 capsules because of their popularity.
Benefits include:
- faster filling
- improved consistency
- easier batch production
Size 00 Capsule Calculator
Use our Capsule Size Calculator to estimate:
- powder capacity
- capsule size recommendations
- number of capsules required per serving
👉 [Insert Calculator Link]
Frequently Asked Questions
How many mg fit in a size 00 capsule?
A size 00 capsule typically holds approximately 380–760 mg depending on powder density.
Are size 00 capsules easy to swallow?
Yes. Size 00 capsules are generally considered a good balance between capacity and swallowing comfort.
Are size 00 capsules vegetarian?
HPMC size 00 capsules are vegetarian and vegan friendly. Gelatin capsules are animal-derived.
What powders work best in size 00 capsules?
Herbal powders, vitamins, supplement blends and many sports supplement powders work well in size 00 capsules.
Is size 00 the most popular capsule size?
Size 00 is one of the most widely used capsule sizes in the supplement industry.
Need Size 00 Capsules?
Browse our range of:
- Size 00 gelatin capsules
- Size 00 HPMC vegetarian capsules
- bulk capsule quantities
- wholesale empty capsules
Available in:
- clear capsules
- coloured capsules
- gelatin capsules
- vegetarian capsules
Important Note
All capsule capacities shown are approximate values only. Actual fill weights depend on powder density, particle size, moisture content and filling method.
