Cost per mg and cost per draw
Price plus shipping, divided by vials, divided by milligrams. The one number that makes two listings comparable.
Worked comparison
| Listing | Price | Vials | mg each | Per vial | Per mg |
|---|---|---|---|---|---|
| 5 mg single | $40 | 1 | 5 | $40.00 | $8.00 |
| 10 mg single | $70 | 1 | 10 | $70.00 | $7.00 |
| 5 mg, 10-vial pack | $300 | 10 | 5 | $30.00 | $6.00 |
| 5 mg single + $12 shipping | $52 | 1 | 5 | $52.00 | $10.40 |
Why per-mg and not per-vial
Vial prices are not comparable because vial masses differ. A $40 vial and a $70 vial tell you nothing until you know the first holds 5 mg and the second 10 mg; then the second is cheaper per milligram. Shipping matters more than it looks on a single vial and less on a pack, which is why the calculator folds it in before dividing. The cost guide covers packs, free-shipping thresholds and the per-draw view.
Questions
How do I calculate cost per mg?
Add shipping to the price, divide by the number of vials to get a price per vial, then divide by the milligrams in one vial. A $40 5 mg vial is $8.00 per mg; a $70 10 mg vial is $7.00 per mg.
Is a bigger vial always cheaper per mg?
Usually but not always, and the per-mg figure is what tells you. Run both through the calculator with shipping included and compare the per-mg lines.
How do multi-vial packs work in the math?
Divide the pack price by the number of vials first. A 10-vial pack at $300 is $30 per vial; at 5 mg each that is $6.00 per mg.
Brands we recommend. We are independent and have no affiliation with any brand: no affiliate links, no referral codes, no paid placements. These are the suppliers whose testing and certificates hold up when we check them.
- Licensed Peptides two accredited labs on every lot, certificates public, card and Apple Pay checkout
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