Shop Empty Capsules by Size

Choose the right capsule size for your formulation needs. From size 000 for high-capacity fills

to smaller sizes for precise dosing, find the perfect fit for your product.

Capsule Sizes

Size 000

Maximum capacity for high-dose formulations and bulk fills.
Capacity of 0.82 - 1.6 grams (g) aprox.
Shop Size 000

Size 00

Most popular size, balancing capacity and ease of swallowing
Capacity of 0.57 to 1.14 grams (g) aprox.
Shop Size 00

Size 0

Versatile and widely used for various supplement formulations.
Capacity of 0.40 - 0.81 grams (g) aprox.
Shop Size 0

Size 1

Ideal for moderate dosages and smaller serving sizes.
Capacity of 0.28 - 0.57 grams (g) aprox.
Shop Size 1

Size 2

Smaller capsules designed for easy swallowing and precise dosing.
Capacity of 216 -432 milligrams (mg) aprox.
Shop Size 2

Size 3

Smaller capsules designed for easy swallowing and precise dosing.

Capacity of 162 - 324 milligrams (mg) aprox.
Shop Size 3

Size 4

Very small capsules, ideal for low-dose applications.
Capacity of 120 - 240 milligrams (mg) aprox
Shop Size 4

Size Chart

Compare capsule sizes to find the right fit for your formulation.
Choose based on capacity, dosage, and ease of use.
Go to Size Chart

Best Sellers

View all
Capsuline PetCaps Chicken Flavored Gelatin Empty Capsules Size 3
£8.39
£8.39
Clear Size 000 Empty Gelatin Capsules by Capsuline
£26.39
£26.39
Clear Size 1 Empty Gelatin Capsules by Capsuline
£14.39
£14.39
Clear Size 0 Empty Gelatin Capsules by Capsuline
From £11.99
From £11.99

Find the Right Capsule Size for Your Needs

High-capacity formulations

Examples: protein blends, herbal powders, complex formulas

Size 000

Standard supplements

Examples: multivitamins, daily capsules, resale products

Size 00

Versatile, all-around use

Examples: general wellness, flexible formulations

Size 0

Lower doses & easier swallowing

Examples: daily intake, smaller servings

Size 1

Precise dosing, kids or pets

Examples: micro-dosing, animal supplements

Size 2-4

Why Choose Capsuline

Shipping Service

We have established a robust shipping service offered to ensure timely and secure delivery of orders worldwide.

Reliable Supply

We offer a vertically integrated supply chain model to ensure reliable long-term supply and complete traceability.

Customer Service

We prioritize open communication to address our clients' specific requirements and deliver personalized solutions.

Technical Support

Our team of experts is available to assist with troubleshooting, answer technical inquiries, and provide guidance.

All Capsules in Bulk

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Clear Vegetarian Capsules Size 0 (Box of 100,000)
£647.99
£647.99
Clear Gelatin Capsules Size 0 (Box of 100,000)
£359.99
£359.99
Colored Empty Gelatin Capsules Size 00 (Box of 75,000)
From £473.06
From £473.06
Clear Empty Gelatin Capsules Size 00 (Box of 70,000)
£383.99
£383.99

Capsule Size Chart

Compare capsule dimensions and approximate fill capacities to select the right size for your formulation. 

View Full Size Chart

Frequently Asked Questions

It depends on your formulation volume, dosage requirements, and target user experience.

Size 00 and size 0 are among the most widely used.

Size 000 offers the highest fill capacity.

Yes, smaller sizes like 3 and 4 are generally easier to swallow.