How do I read a peptide reconstitution chart?

Find your vial strength down the left side and the amount of bacteriostatic water you added across the top. Where they meet is your concentration in mg per mL. The tables below then convert a dose into units.

What concentration should I aim for?

One that puts your usual dose between roughly 10 and 50 units on the barrel. That range is easy to read and a small misread costs you the least.

Does the chart change for different peptides?

No. The arithmetic is identical for every compound. Only the dose you look up changes, and whether it is written in mg or mcg.

Peptide reconstitution chart

Every common vial strength against every common water volume. Find your two numbers, read the concentration, then use the dose tables underneath.

Reviewed 3 September 2026
Independent, no vendor links
Research use only

Concentration, in mg/mL

Vial	1 mL	1.5 mL	2 mL	2.5 mL	3 mL	5 mL
2 mg	2	1.33	1	0.8	0.67	0.4
5 mg	5	3.33	2.5	2	1.67	1
10 mg	10	6.67	5	4	3.33	2
15 mg	15	10	7.5	6	5	3
20 mg	20	13.33	10	8	6.67	4
30 mg	30	20	15	12	10	6
60 mg	60	40	30	24	20	12

Concentration in mg/mL. Find your vial down the left and your water across the top.

IndependentThis site does not sell peptides and is not owned by a vendor.

The maths is openThe formula is on every page and in the methodology. The code is one file with an automated test suite, run before each deploy.

How it is fundedNo ads and no vendor links here. It is published by the team behind Peptide Bureau, which earns from affiliate links on its own site, and VialHaus, the same team's vial storage shop, which the storage notes link to.

ReviewedDose ranges and half-lives checked 3 September 2026.

Dose to units

All tables below assume a standard U-100 insulin syringe, where 100 units is 1 mL. On a U-40 syringe, multiply every number by 0.4.

Units for a 2 mg dose

Vial	1 mL	1.5 mL	2 mL	2.5 mL	3 mL	5 mL
2 mg	100	150	200	250	300	500
5 mg	40	60	80	100	120	200
10 mg	20	30	40	50	60	100
15 mg	13.3	20	26.7	33.3	40	66.7
20 mg	10	15	20	25	30	50
30 mg	6.7	10	13.3	16.7	20	33.3
60 mg	3.3	5	6.7	8.3	10	16.7

Units for a 0.5 mg dose

Vial	1 mL	1.5 mL	2 mL	2.5 mL	3 mL	5 mL
2 mg	25	37.5	50	62.5	75	125
5 mg	10	15	20	25	30	50
10 mg	5	7.5	10	12.5	15	25
15 mg	3.3	5	6.7	8.3	10	16.7
20 mg	2.5	3.8	5	6.2	7.5	12.5
30 mg	1.7	2.5	3.3	4.2	5	8.3
60 mg	0.8	1.2	1.7	2.1	2.5	4.2

Units for a 250 mcg dose

Vial	1 mL	1.5 mL	2 mL	2.5 mL	3 mL	5 mL
2 mg	12.5	18.8	25	31.2	37.5	62.5
5 mg	5	7.5	10	12.5	15	25
10 mg	2.5	3.8	5	6.2	7.5	12.5
15 mg	1.7	2.5	3.3	4.2	5	8.3
20 mg	1.2	1.9	2.5	3.1	3.8	6.2
30 mg	0.8	1.2	1.7	2.1	2.5	4.2
60 mg	0.4	0.6	0.8	1	1.2	2.1

Units for a 500 mcg dose

Vial	1 mL	1.5 mL	2 mL	2.5 mL	3 mL	5 mL
2 mg	25	37.5	50	62.5	75	125
5 mg	10	15	20	25	30	50
10 mg	5	7.5	10	12.5	15	25
15 mg	3.3	5	6.7	8.3	10	16.7
20 mg	2.5	3.8	5	6.2	7.5	12.5
30 mg	1.7	2.5	3.3	4.2	5	8.3
60 mg	0.8	1.2	1.7	2.1	2.5	4.2

If your exact combination is not on the chart, the calculator takes any numbers you like.

Common questions

How do I read a peptide reconstitution chart?: Find your vial strength down the left side and the amount of bacteriostatic water you added across the top. Where they meet is your concentration in mg per mL. The tables below then convert a dose into units.
What concentration should I aim for?: One that puts your usual dose between roughly 10 and 50 units on the barrel. That range is easy to read and a small misread costs you the least.
Does the chart change for different peptides?: No. The arithmetic is identical for every compound. Only the dose you look up changes, and whether it is written in mg or mcg.

Peptide calculator by Peptulator Free, no signup. Research use only, not medical advice.

Free downloadThe Protocol Pack

25 printable pages: dosing cards for the twelve most-used compounds at three water volumes, titration planners, a vial log, and five pages on what to do when it has already gone wrong.

MethodologyEvery formula and rounding rule, so you can check the maths Read a syringeU-100 vs U-40, and the 2.5x error Build a full protocolThe stack builder at Peptide Bureau, about two minutes

Related calculators and charts

Dosage charts and schedules

Peptide reconstitution chart (this page)
Peptide dosing chart Printable unit tables for every compound
Retatrutide titration schedule 2 to 12 mg in units, stage by stage
Tirzepatide titration schedule 2.5 to 15 mg in units, stage by stage
Semaglutide titration schedule 0.25 to 2.4 mg in units, stage by stage
KLOW dosage and frequency chart The 80 mg blend at 2, 3 and 4 mL, both phases
GLOW dosage chart The 70 mg blend, units to each peptide
Wolverine stack dosing chart BPC-157 + TB-500, blend and separate vials
MOTS-c dosage chart 5 and 10 mg vials at three water volumes
Tirzepatide reconstitution chart Every vial size, every water volume, the whole ladder
Tirzepatide units to mg chart Both directions, every vial and water volume
Semaglutide units to mg chart The dosage chart in units, both directions
NAD+ injection dosage chart Per day, per week and frequency, 100 to 1,000 mg vials
Tesamorelin dosage chart 2, 5 and 10 mg vials, 0.5 to 2 mg in units
BPC-157 dosage chart mcg doses from 5 and 10 mg vials, four water volumes
PT-141 dosage chart The 10 mg vial, 0.5 to 2 mg, with uses per vial
Sermorelin dosage chart Nightly mcg doses from 5, 10 and 15 mg vials
Printable dosing charts Four one-page charts to save, pin or print
Peptide storage chart How long powder and mixed vials last, fridge to freezer

Every one of the 27 compound calculators, charts and tools: the full list.

Before you use these numbers This is a unit-conversion tool. It turns a vial strength and a water volume into a concentration, a draw volume and a syringe mark. It does not tell you what to take, whether to take it, or whether a compound is safe for you. Most compounds listed are sold for laboratory research and are not approved for human use. Nothing here is medical advice. Dosing decisions belong with a licensed clinician who knows your history. Always check the strength printed on your own vial rather than trusting a preset.