Free tool.
The Kava Value Calculator.
Kava pricing hides behind formats: shots, cans, powders, capsules. One number cuts through all of it, the cost per 100 mg of kavalactones. Type in any label and see what you are really paying, then compare it with what every major brand charges.
The calculator.
Three numbers off any label, one number back.
Enter the three numbers from any kava label and we compute what you are actually paying per 100 mg of kavalactones, the one number that makes every format comparable. If the label does not print a kavalactone number, that is your first finding: there is nothing to compute, and we would keep shopping.
Formula: (price ÷ servings) ÷ kavalactone mg × 100. Runs in your browser; nothing is stored.
Fig. 1. The verified table.
What every major kava really costs per 100 mg.
Every row comes from a published Kava Review test, with label claims checked against the brand's certificate of analysis. Brands that do not publish a kavalactone number cannot be ranked, and we say so rather than guessing.
How the metric works.
Kavalactones are the active compounds in kava root. A label that says "1,000 mg of kava extract" has told you the weight of the ingredient, not the strength of the drink. Our standard is simple: the brand publishes kavalactones per serving, we verify it against the batch-matched lab report, and we divide the price by it. Read the full methodology.
Citing this data.
Writers, researchers, and kava communities are welcome to cite this table and calculator with a link to this page as the source. The dataset is maintained by the Kava Review desk and updated as brands reformulate, reprice, or start publishing their numbers. Questions or a correction? Contact the desk.
Value questions, answered straight.
- What is a good cost per 100 mg of kavalactones?
- Across every product we have verified, roughly $1.20 per 100 mg (the Root of Happiness KavaShot, a 2 oz concentrate disclosing 500 mg) is the floor, and honest ready-to-drink cans cluster between about $1.67 and $4.17 per 100 mg. Above roughly $7 per 100 mg you are paying mostly for format and flavor rather than kavalactones.
- Why rank kava by cost per 100 mg instead of price per can?
- Because a $4 can and a $5 can can differ by 3x in actual kavalactone content. Kavalactones are the active compounds in kava, so cost per 100 mg is the only number that makes a shot, a can, a powder, and a capsule directly comparable. It is the metric every ranking on this site runs on.
- What if the label does not list kavalactones at all?
- Then there is no number to compute, and that itself is the finding. Total root or extract weight (for example, 1,000 mg of kava extract) is not a kavalactone disclosure. Brands that publish the real number earn a row in our table; brands that do not get flagged in our reviews.
- Where do the numbers in the reference table come from?
- Every figure is pulled from our published, source-linked reviews, which check label claims against the brand's own certificates of analysis and posted pricing. We update rows when brands reformulate or reprice. Kava is for adults 21 and up, and nothing on this page is medical advice.