Compare two supplements by cost per serving and cost per month to find the better value.
Compare Costs ↓Enter the price and number of servings for each product.
Product A
Product B
A cheaper cost per serving isn't a genuine bargain if the serving size is smaller or the active ingredient dose is lower. Compare labels closely, not just shelf price, to see what you're actually paying for per gram of active ingredient.
Larger containers often offer a better cost per serving, but not universally — some brands price larger sizes with only a marginal discount, or none at all. Always do the actual per-serving math rather than assuming size equals savings.
Products verified by independent testing organizations (like NSF Certified for Sport or Informed Sport) may cost more per serving, but this reflects a real quality and safety assurance that a cheaper untested alternative doesn't offer.
A larger container costs more upfront but may work out cheaper per month at your actual usage rate. Comparing monthly cost, based on your real daily serving amount, gives a more useful long-term picture than sticker price alone.
This calculator divides each product's price by its number of servings to get cost per serving, then multiplies that by your daily serving count and roughly 30.4 days to estimate a monthly cost at your actual usage rate. This lets you compare products of different container sizes, prices, and serving counts on equal footing, rather than being misled by total price alone.
This calculator compares cost per serving only — it doesn't account for differences in ingredient quality, dose per serving, third-party testing, or other factors that might justify a price difference. If two products have meaningfully different doses of the active ingredient per serving, a true value comparison should also account for cost per gram of that ingredient, not just cost per serving alone.