Reference
Peptide cost per mg calculator
Research peptide prices are quoted per vial, and vial strengths and pack quantities make those headline prices hard to compare. Enter price, mg per vial, and how many vials for each option — the calculator normalizes everything to cost per milligram and flags the better value.
Option B (optional)
What this calculator does
Different vial strengths and pack counts make headline prices impossible to compare at a glance. This tool reduces every option to one honest number — cost per milligram — and tells you which is the better value. Compare one option, or fill both to put two side by side.
How to use it
- Total priceWhat you pay for the whole order, in dollars.
- mg per vialHow many milligrams of peptide are in each vial.
- VialsHow many vials the order includes. Fill Option B the same way to compare a second product.
Reading your results
- Cost per mgPrice divided by total milligrams — the true unit cost, shown for each option.
- Better valueWhich option costs less per mg, and by how much.
A worked example
Option A: $42 for one 5 mg vial. Option B: $80 for one 10 mg vial.
A: 42 ÷ 5 = $8.40/mg
B: 80 ÷ 10 = $8.00/mg — Option B is the better value
Common questions
Why compare on cost per mg?
It strips out vial strength and pack count, so a 5 mg vial and a 10 mg vial compare on the same footing.
Is a bigger vial always cheaper per mg?
Often, but not always — which is exactly why it's worth checking rather than assuming.
How do I compare research peptide prices between sellers?
Put each seller's price, mg per vial and vial count into an option here and compare cost per mg. Then check what stands behind the mg: a seller with a batch-linked certificate of analysis from an independent lab has documented the amount; a seller without one has only claimed it. If the COA shows purity below 100%, the purity-adjusted calculator gives the effective mg to use.
Can I compare two different peptides?
The math works, but a price comparison only makes sense between the same compound. Cost per mg of two different peptides isn't a like-for-like value judgment.
The math, for the curious
cost per mg = total price ÷ (mg per vial × number of vials)