Use this calculator to plan how many Pure Encapsulations Ashwagandha 500mg capsules and bottles you’ll need for a given time period, and see the estimated cost based on the current 120-count bottle price.
Ashwagandha Dosage & Cost Calculator
Based on the labeled dose options for Pure Encapsulations Ashwagandha 500mg and the published 120-count bottle at $52.00.
Estimate only – based on the current listed price of the 120-count Pure Encapsulations Ashwagandha 500mg bottle. Actual Amazon price can change; check the live price before buying.
Why no height/weight input? Unlike per-kg supplements (creatine, protein), Ashwagandha has no published bodyweight-adjusted dosing in the research behind it. This calculator doesn't fabricate a per-kg formula that doesn't exist in the literature.
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This product’s label dose is one 500 mg capsule daily of a root extract standardized to 2.5% withanolides. That falls within the 300–600 mg/day range most clinical ashwagandha trials use, though the exact extract concentration and dosing schedule vary by study — this calculator only offers the single label-stated dose rather than a fabricated higher tier, since that’s the only option this specific product’s label supports.
One of the most frequently cited ashwagandha trials, a 2012 randomized, double-blind, placebo-controlled study, used 300 mg of a high-concentration full-spectrum root extract twice daily (600 mg/day total) and found significant reductions in perceived stress scores and serum cortisol versus placebo [1]. That trial used a different, higher-concentration extract than this product’s 2.5%-withanolide standardization, so results may not translate directly — it’s included here as context for the dose range, not a guarantee of equivalent effect.
As with the other calculators on our network, there’s no published bodyweight-adjusted dosing for ashwagandha, so this tool plans by a fixed daily amount rather than your height or weight.