Capsule size guide
Size 2 empty capsules for bulk supply
Size 2 suits lower-dose formulations and products where a small capsule is part of the appeal. It is common in pharmaceutical manufacturing for potent actives with excipients.
Size 2, drawn to scale (white cap, clear body).
Size 2 fill weight by powder density
| 0.4 g/mL | 0.6 g/mL | 0.8 g/mL | 1.0 g/mL | 1.2 g/mL |
|---|---|---|---|---|
| 148 mg | 222 mg | 296 mg | 370 mg | 444 mg |
Typical uses for size 2 capsules
- Lower-dose supplements
- Pharmaceutical actives with small fill weights
- Products for consumers who prefer small capsules
- Dense or granulated fills
Small sizes run at high speed on most encapsulators; confirm change parts for size 2 on your machine.
Compare with neighbouring sizes
Size 2 capsules: questions
How much powder does a size 2 capsule hold?
A size 2 capsule has a typical volume of 0.37 mL. That is roughly 222 mg of powder at a tapped density of 0.6 g/mL, 296 mg at 0.8 g/mL and 370 mg at 1.0 g/mL. Actual fill weight depends on your blend and filling machine.
What are the dimensions of a size 2 capsule?
Typical closed length is 18.0 mm, with a cap diameter of 6.35 mm and a body diameter of 6.07 mm. Exact dimensions and tolerances are on the product specification sheet sent with your quote.
Which capsule types are available in size 2?
Capsules Hub supplies size 2 as: Gelatin capsules, HPMC (hypromellose) capsules, Enteric coated capsules. Custom colours and printing are available on request.
Can I buy size 2 capsules in small quantities?
No. Capsules Hub supplies empty capsules in bulk cartons only, to manufacturers who fill their own formulations.
Ready to source size 2 capsules? Tell us the material, colours and quantity and we will reply with bulk pricing and availability.
Request a bulk quote Open the capsule builder