How Many Capsules Is Your Scoop?
Estimate how many capsules a powder dose will fill.
This tool was built by Serge (MSc) using established science and government sources. My academic background covers plant biology, environmental biology, and biogeochemistry. My tools are for educational purposes and give practical guidance, not professional advice.
A powder to capsule converter helps when you want to move from a scoop to capsules. The answer depends on the capsule size and on how dense the powder is.
Pick a capsule size and a powder type, or enter the fill weight if you already know it.
Why one capsule holds different weights
A capsule is a fixed space. What goes into it by weight depends on how tightly the powder packs, which is why a size 00 capsule might hold 400 mg of a light powder and over 900 mg of a dense one.
Typical capsule sizes
| Size | Volume | Medium powder |
|---|---|---|
| Size 4 | 0.21 mL | about 147 mg |
| Size 3 | 0.30 mL | about 210 mg |
| Size 2 | 0.37 mL | about 259 mg |
| Size 1 | 0.50 mL | about 350 mg |
| Size 0 | 0.68 mL | about 476 mg |
| Size 00 | 0.95 mL | about 665 mg |
| Size 000 | 1.37 mL | about 959 mg |
These are typical sizes from capsule makers, not an official standard. Real fills are usually a little lower, so the tool rounds up.
Before you switch from powder to capsules
A dose that takes one scoop can take six or more capsules. Check the number first, because it changes cost and convenience.
Start by finding the powder's weight with the Scoop to Grams Converter, and use the Serving Size Converter if your units differ. Then the Cost Per Dose Calculator tells you whether capsules or powder cost less per dose.
Many capsule labels already print the amount per capsule. When they do, use that figure in the optional field, since it beats any estimate.
A note on serving size
Manufacturers choose the serving size on a label, and the NIH Office of Dietary Supplements suggests asking a health care provider about the amount that suits you. This tool only counts capsules, it does not suggest a dose.
This tool is for general education only and is not medical or professional advice. Always check product labels and speak with a qualified professional before making decisions about supplements.