A $30 bottle can cost less per labeled serving than a $24 bottle. The useful comparison is the amount you pay divided by the number of servings you receive, with the serving size checked first.
This worksheet helps you compare the purchase. It does not tell you which formula is suitable for you or whether one product works better.
1. Find servings, not just capsules or scoops
Start with the serving size and servings per container on the actual label. A bottle with 60 capsules is not necessarily 60 servings. If its serving size is two capsules, it contains 30 labeled servings. Use the manufacturer's stated serving information and directions; do not change how much you take to make the price look lower.
The FDA's supplement overview explains the information provided in a Supplement Facts panel. Our label-reading guide walks through that panel.
2. Calculate the basic cost
Product cost per serving = product price ÷ total labeled servings purchased.
For a multi-pack of identical containers, multiply the servings in one container by the number of containers actually included. Check the selected variant, rather than assuming that a pack name establishes the quantity.
3. Compare the same basis
The following figures are fictional examples, not FUOOL prices or products.
| Detail | Bottle A | Bottle B |
|---|---|---|
| Price | $30 | $36 |
| Capsules per bottle | 60 | 90 |
| Capsules per labeled serving | 2 | 3 |
| Labeled servings | 30 | 30 |
| Product cost per serving | $1.00 | $1.20 |
Bottle B contains more capsules, but both bottles contain 30 labeled servings. Bottle A has the lower product cost per serving in this example. The arithmetic says nothing about ingredient equivalence, quality, safety, or effectiveness.
4. Add the costs that change your total
Delivered cost per serving = (item subtotal after discounts + shipping + applicable tax) ÷ total labeled servings purchased.
For a single-product order, this gives a useful delivered comparison. In a mixed cart, decide how to allocate shared shipping before comparing products. Keep that method consistent. Check whether an offer requires a subscription, whether it renews, and which price applies to future orders.
Adding items to reach a free-shipping threshold can increase the amount you spend. Compare the final checkout totals and buy only the quantity you intended to use. See the current shipping policy and return policy before committing to a larger pack.
A worksheet you can copy
- Exact product and selected pack:
- Serving size from label:
- Servings per container:
- Containers included:
- Total labeled servings:
- Item subtotal after discounts:
- Shipping and applicable tax:
- Final delivered total:
- Delivered total ÷ total labeled servings:
- Ingredient amounts, source, or other differences that prevent a like-for-like comparison:
What to do when the serving count is missing
Leave the calculation unfinished and ask for the complete label. Container weight alone does not establish the number of servings unless the corresponding serving weight is known. A scoop is also not a universal weight across different products.
Use the worksheet while browsing the FUOOL catalog. If a detail is unclear, ask us for the product information before purchasing.
Keep comparing
Prepared by FUOOL with AI assistance. This guide explains shopping and label comparisons; it is not a product test, a clinical review, or personalized health advice.