10 mg in 1 ml
10 mg/ml · 100 mcg per unit
Concentrated. A 250 mcg dose is 2.5 units, low enough on the barrel that the graduations are coarse relative to the volume. Ten doses of that size per vial.
Reference
What you get, before what you draw.
Every vial size against every water volume, with the concentration in each cell and the one derived figure that makes the rest mental arithmetic.
- Vials
- 2 to 30 mg
- Water
- 1 to 5 ml
- Syringe
- U-100
- Cost
- Free
The science
Read the concentration, then everything else is easy
01
A reconstitution chart and a dosage chart are not the same document. A dosage chart starts from the dose you want and tells you how many units that is. A reconstitution chart starts from the vial and the water and tells you what concentration you have created, which is the number every later calculation depends on.
02
Concentration is vial mass divided by water volume, expressed in milligrams per millilitre. It is the only quantity that carries forward. Once you know it, any dose converts by dividing, and once you have written it on the vial you never have to reconstruct it from memory or from a forum post.
03
The second figure in each cell is the more useful one in practice: how many micrograms sit in one unit on a U-100 barrel. Because a unit is 0.01 ml, that figure is just the concentration multiplied by ten. At 1 mg per ml a unit holds 10 mcg, at 2.5 mg per ml it holds 25 mcg, and from there most dosing becomes mental arithmetic.
04
Choosing a round concentration is worth doing for exactly that reason. Reconstituting a 10 mg vial with 4 ml rather than 3 ml gives 2.5 mg per ml instead of 3.33, and a clean number is one you can check without a calculator. Being able to catch your own error is more valuable than an extra decimal place of theoretical precision.
Worked through
The same vial, four different answers
A 10 mg vial is the most common presentation, and it illustrates why quoting a units figure without its water volume tells the next person nothing at all.
10 mg in 2 ml
5 mg/ml · 50 mcg per unit
A 250 mcg dose is 5 units. Workable, and the round concentration means you can check it without reaching for anything.
10 mg in 3 ml
3.33 mg/ml · 33.3 mcg per unit
A 250 mcg dose is 7.5 units, comfortable to read, but the concentration is not a round number so the arithmetic is harder to verify mentally.
10 mg in 5 ml
2 mg/ml · 20 mcg per unit
A 250 mcg dose is 12.5 units, the easiest of the four to measure. The tradeoff is five millilitres of solution to use inside a storage window.
FAQ
Common questions
What is a peptide reconstitution chart?
A table showing what concentration you get from each combination of vial size and water volume. It answers the question you face before dosing, which is what you have created by adding a given amount of bacteriostatic water. A dosage chart answers the next question, converting a specific dose into syringe units.
How do I read this chart?
Find your vial size down the left, your water volume across the top, and the cell gives two figures. The large one is milligrams per millilitre, the concentration. The small one below it is how many micrograms one unit on a U-100 syringe holds at that concentration, which is the number to write on the vial.
How do I calculate concentration myself?
Divide the milligrams in the vial by the millilitres of water you added. A 10 mg vial with 2 ml of bacteriostatic water is 5 mg per ml. To get micrograms per unit, multiply that by ten, because one unit on a U-100 barrel is 0.01 ml, so 5 mg per ml is 50 mcg per unit.
Which concentration should I aim for?
One that puts your intended dose between roughly 10 and 50 units on the barrel, which is where a U-100 syringe reads most reliably. Round concentrations are worth preferring because they let you check the arithmetic mentally. Beyond that the choice trades measurement accuracy against how many doses a vial holds within a storage window.
Does the chart change for different peptides?
No. Concentration is pure arithmetic on mass and volume, so a 5 mg vial in 2 ml is 2.5 mg per ml whether it contains BPC-157, ipamorelin or anything else. What differs between compounds is the dose people use and whether an approved dose exists at all, which is a separate matter from the chart.
Why does my chart differ from another site?
Usually because the other one is a dosage chart rather than a reconstitution chart, so its cells are syringe units for a particular dose rather than concentrations. Both can be correct while looking nothing alike. Check what the column headings actually represent before comparing numbers between two tables.
VialClock
This page calculates. Your notes app forgets.
Every tool here is stateless by design. What it cannot do is remember that your vial was mixed eleven days ago, or that a step-up is due this week.
Browse all calculatorsThis tool performs arithmetic on figures you enter, or presents a manufacturer-published schedule. It does not know your protocol, will never suggest a dose, and is not medical advice. Dosing decisions belong with a qualified prescriber.