Peptide Cost-Per-Dose Calculator

This free calculator is for anyone weighing a peptide purchase: give it four numbers you already have (the vial price, the milligrams in the vial, your dose, and how often you dose) and it works out what a single shot costs, plus your weekly, monthly, and full-cycle spend. It also hands you the one figure that compares two vendors fairly,cost per milligram, which puts a big vial and a small vial on the same yardstick. It sells nothing, links no sellers, and every number is just arithmetic on what you typed.

How to work out peptide cost per dose

Peptide cost per dose is just the vial price split across the whole doses one vial holds. The only trick is matching units first: a 10 mg vial is 10,000 mcg, so at a 500 mcg dose it holds 20 whole doses, and a $180 vial comes out to $9 a shot. Multiply that by how often you dose and you have your weekly, monthly, and per-cycle spend. None of it is a price we set — it's your own numbers, divided.

Why cost per mg is the fair way to compare vendors

Cost per mg is the honest comparison because it cancels out vial size, the thing that makes a small vial look cheap. Put a $90 vial holding 5 mg next to a $180 vial holding 15 mg: the $90 one looks like the bargain, but it works out to $18 per mg, while the "expensive" $180 vial is $12 per mg — a third cheaper for the exact same peptide. The calculator shows cost per mg on every result, so you can line up two listings and see which is actually the better deal, without us pointing you at any particular seller.

Counting whole vials for a cycle

A cycle comes in whole vials, not fractions, so the per-cycle math always rounds up. Say an 8-week daily cycle needs 56 doses and each vial gives 20 — that's three vials, not the 2.8 the paper math suggests, because nobody sells you 0.8 of a vial. The calculator shows both the cost of the doses you'll actually use and what buying whole vials really costs, so that leftover peptide isn't a surprise.

Consumables add up quietly

Bacteriostatic water and insulin syringes — the sterile water you mix the powder with and the needles you draw with — are cheap each but not free, and across a long cycle they quietly pad the real per-dose cost. The Advanced section lets you fold in the BAC water cost per vial (spread across that vial's doses) plus a per-shot syringe cost, so the "cost per dose" you land on is the all-in number, not just the peptide by itself.

How this pairs with the other tools

Cost per dose rides on how many doses you get from a vial, which comes straight from your dose size — the very input ourreconstitution & dosing calculatoruses to tell you the exact insulin-syringe units to draw. If you're weighing two compounds with different dosing rhythms, thehalf-life visualizer shows how often you'd really need to inject each one, which feeds straight back into the cost. Change your dose in one tool and the math here shifts with it.

We don't sell peptides

Most cost calculators live on a vendor's own site, where the comparison is quietly built to end at their checkout. We sell nothing — no products, no affiliate links, no "here's the cheapest source" nudge at the bottom. The point of this tool is to hand you an honest number and let you take it wherever you want.

Cost math current as of July 2026. Educational information, not medical advice.

Peptide Cost-Per-Dose Calculator