Technical Reference

Capsule Size & Capacity Specifications

Technical reference data for empty capsule sizes, shell dimensions, capacity, and reference fill weights for gelatin and HPMC capsules.

Capsule Size Chart

Empty Capsule Size Chart And Fill Capacity

Use this empty capsule size chart to compare capsule dimensions, average shell weight, capacity volume, and reference fill weights by powder density for sizes 00 through 4.

Need help choosing the right capsule size? Read our Empty Capsule Size Guide.

Size Comparison

Visual Capsule Size Reference

Visual reference only. Please refer to the detailed specification table below for exact dimensions and capacity data.

00#

Listed size data are suitable for Gelatin Empty Capsules and HPMC Empty Capsules. Length and diameter are shown in mm. Average weight is shown in mg. Capacity is shown in ml. Weight gap: +/- 6%.

Size	Cut Length	Outside Diameter	Covering Length	Average Weight	Weight Gap	Capacity Volume	Reference Fill Weights
00#	Cap 11.4-12.0 mm Body 19.8-20.4 mm	Cap 8.50-8.58 mm Body 8.13-8.21 mm	22.2-23.2 mm	122 mg	+/- 6%	0.95 ml	567 mg at 0.5 g/ml 758 mg at 0.7 g/ml 955 mg at 1.0 g/ml 1145 mg at 1.2 g/ml
0#	Cap 10.7-11.3 mm Body 18.2-18.8 mm	Cap 7.57-7.71 mm Body 7.26-7.40 mm	20.7-21.7 mm	97 mg	+/- 6%	0.67 ml	335 mg at 0.5 g/ml 469 mg at 0.7 g/ml 670 mg at 1.0 g/ml 804 mg at 1.2 g/ml
1#	Cap 9.50-10.1 mm Body 16.2-16.8 mm	Cap 6.83-6.97 mm Body 6.56-6.70 mm	18.5-19.5 mm	76 mg	+/- 6%	0.50 ml	250 mg at 0.5 g/ml 350 mg at 0.7 g/ml 500 mg at 1.0 g/ml 600 mg at 1.2 g/ml
2#	Cap 8.60-9.20 mm Body 15.1-15.7 mm	Cap 6.28-6.42 mm Body 6.00-6.14 mm	17.0-17.8 mm	62 mg	+/- 6%	0.37 ml	185 mg at 0.5 g/ml 259 mg at 0.7 g/ml 370 mg at 1.0 g/ml 444 mg at 1.2 g/ml
3#	Cap 7.80-8.40 mm Body 13.3-13.9 mm	Cap 5.76-5.90 mm Body 5.50-5.64 mm	15.0-15.8 mm	50 mg	+/- 6%	0.30 ml	150 mg at 0.5 g/ml 210 mg at 0.7 g/ml 300 mg at 1.0 g/ml 360 mg at 1.2 g/ml
4#	Cap 6.90-7.50 mm Body 11.9-12.5 mm	Cap 5.25-5.39 mm Body 4.98-5.12 mm	13.4-14.3 mm	39 mg	+/- 6%	0.21 ml	105 mg at 0.5 g/ml 147 mg at 0.7 g/ml 210 mg at 1.0 g/ml 252 mg at 1.2 g/ml

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Selection Guidance

How Buyers Should Use The Size Chart

Capsule size selection should be confirmed against the formulation, target fill weight, powder density, and filling equipment.

Choose By Fill Volume

Start with the required fill volume or target dosage, then compare it with the listed capacity volume for each capsule size.

Confirm Powder Density

Actual fill weight depends on powder density and flow behavior. Confirm density before final capsule size selection.

Request Specification Matching

If you are unsure, contact us for specification matching based on fill material, capsule type, target size, and filling process.

Documentation

Certificates & Compliance

Supporting technical and regulatory documents for capsule buyers, including safety, registration, and certification materials.

BRCGS Food Safety Certificate

Current BRCGS food safety certification supporting controlled manufacturing and buyer compliance review.

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ISO 9001:2015 Quality Management System Certificate

ISO 9001:2015 certificate documenting the company's quality management system framework.

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Halal Product Certificate

Current Halal certificate issued in 2025 and valid until February 18, 2028 for applicable capsule products.

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MSDS

Material Safety Data Sheet for capsule materials and handling reference.

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FDA Food Facility Registration

Registration document for U.S. market compliance reference.

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Specification Support

Need help matching capsule size?

Send us your fill material, target dosage, capsule type, and expected filling process. Our team can support specification matching.

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