Pick the vial, the water you added and the dose. Get the exact draw in units for the syringe in your hand.
Draw to12.0units0.12 mL
Step 1 of 4
1How many mg are in your vial?
Vial strengthamount printed on the vial
2How many mL of water did you add?
Bacteriostatic water addedhow much water you added
3What dose do you want to convert?
Target doseenter the dose you want to convert
This vial holds 5,000 mcg in total.
4Which syringe are you using?
Syringe typematch the label on your syringe
U-100 insulin syringe · 1 mL · lines every 2 units · 1 unit = 0.01 mL
Draw to
12.0units
0.12 mL · 1.67 mg/mL · 17 mcg per unit · 25 doses per vial
12.0 units on a U-100 insulin syringe · 1 mL · lines every 2 units, which is 0.12 milliliters. The draw lands on a syringe line.
Easy to read on this syringe. Draw to the 12-unit line. No rounding is needed.
5 mg ÷ 3 mL = 1.67 mg/mL → 17 mcg/unit · 200 mcg = 0.120 mL =12.0 units
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Show the math and syringe details+
Can this syringe show the result clearly?
Easy to read on this syringe.12.0 u is exactly the 12-unit line on a U-100 — no rounding error at all.
Want an easier syringe number?
This setup is already easy to read. Changing the water between 0.5 and 3 mL would not put 200 mcg closer to a line on this U-100 syringe.
Adding more water makes the mixture less concentrated, so the same dose uses more syringe units. It does not change how much peptide is in the vial.
This setup is in the address bar — every input is part of the link.
Educational math, not medical advice — dosing decisions belong to a licensed clinician. The tabs above also plan a schedule week by week and count how many doses one vial holds.
How to use the calculator
STEP 1
Enter the amount in the vial
Use the total amount printed on the vial, in mg.
STEP 2
Enter the water you added
Use the amount of water added to that vial, in mL.
STEP 3
Enter the dose you want to convert
Choose mg or mcg, then match the result to your syringe.
CJC-1295 is a redesigned copy of the hormone that tells your pituitary to release growth hormone. One version bonds to a protein in your blood, which stretches its life from minutes into days. It is sold for the same wishlist as ipamorelin, and usually stacked with it: muscle, fat loss, recovery and sleep.
The human studies measured one thing, and it was growth hormone in the blood. None of them reported muscle, fat, strength or anything a person would notice. Most material sold under the name is the short-acting molecule, which was never in those studies.
Examples using a 5 mg CJC-1295 vial
Each row starts with the same 5 mg vial and changes only the amount of water. More water makes the mixture less concentrated, so the same dose uses more syringe units.
◆ How the water amount changes the resultdose used: 200 mcg
For a 5 milligram vial: bacteriostatic water added, resulting concentration, micrograms per U-100 unit, and the draw for a 200 mcg dose.
Water added
Concentration
Per U-100 unit
Draw for 200 mcg
Nearest syringe line
2 mL
2.50 mg/mL
25.0 mcg
8.0 u · 0.080 mL
exactly 8 u
3 mL
1.67 mg/mL
16.7 mcg
12.0 u · 0.120 mL
exactly 12 u
The vial, water and dose shown here are the calculator’s starting example for CJC-1295. Replace them with your own values. Every result in the table is calculated from those inputs.
Drawn from once a week at 200 mcg, a 5 mg vial yields 25 doses — about 25.0 weeks of supply. No cited source says how long the mixed vial keeps, so no storage window is shown.
The vial cannot tell you which molecule it holds
Two different substances share this one name, and they ship at the same vial strength. The arithmetic here works on both. Only one of them has ever gone into a person in a study.
3Open the mixing details — 3 notes
One name, two molecules, identical labels
The version the studies used carries an extra chemical arm. That arm bonds it to a protein in the blood and stretches how long it lasts from minutes into days. The version without the arm is a different substance with a different lifetime.
Both come in vials of the same strength. The number on the glass cannot separate them, and neither can this page. Buyers frequently cannot tell which they hold, so every figure below rests on something the vial does not state.
Published amounts scale with body weight
Every quantity in the human work scales with body weight. A vial holds a fixed mass of powder, so none of those figures becomes a draw without a weight to multiply by.
The flat microgram amounts that circulate for this peptide are not smaller versions of the studied ones. They come from practice. The studies are not where they came from.
Here the water volume only changes how long the vial lasts
One vial size and two water amounts are documented. The worked dose lands exactly on a syringe line with either amount.
On most compounds the water volume decides whether the number can be read at all. On this one it does not. So the choice comes down to how many doses you want the mixed vial to cover.
The figure people copy is a total for a week; the box wants one injection
The trials behind this name gave a single injection, scaled to body weight, then watched what happened for days. The amount that circulates is a milligram total for a week, split across one or two shots. The calculator asks for neither. It asks what goes into one draw.
4Read the supporting evidence — 4 supporting notes
A weekly total is not a draw, and splitting it is a decision
The circulating row on this page is written the way people talk. So many milligrams a week, split over a shot or two. The splitting is where the arithmetic starts, and the source does not say how to split it.
One injection, a long tail, and no sign that more does more
In the published work a single injection lifted growth hormone for days. The downstream factor stayed up longer still. The researchers did not repeat the dose and measure. They gave it once and followed the tail.
The evidence stops where the company stopped
Both human studies here are early pharmacology. They asked what the molecule does to a hormone level. That is the first question a drug program asks, and this program never reached the second.
A vial this size sits in a fridge for a long time
Set against the amount most people draw, this vial holds a lot of injections. At a weekly rhythm the mixed solution would still be there months later, getting steadily older.
Units to dose at 1.67 mg/mL
Mix 5 mg into 3 mL and one U-100 unit carries 16.7 mcg. The table shows how much peptide is in each numbered syringe line. These are conversion examples, not suggested doses.
10Open the unit conversion table — 10 rows
Numbered U-100 syringe lines converted to volume and mass at 1.67 milligrams per milliliter.
U-100 line
Volume
Mass (mcg)
Mass (mg)
10 u
0.10 mL
167 mcg
0.167 mg
20 u
0.20 mL
333 mcg
0.333 mg
30 u
0.30 mL
500 mcg
0.5 mg
40 u
0.40 mL
667 mcg
0.667 mg
50 u
0.50 mL
833 mcg
0.833 mg
60 u
0.60 mL
1,000 mcg
1 mg
70 u
0.70 mL
1,167 mcg
1.167 mg
80 u
0.80 mL
1,333 mcg
1.333 mg
90 u
0.90 mL
1,500 mcg
1.5 mg
100 u
1.00 mL
1,667 mcg
1.667 mg
How the math works
Concentration — divide the amount in the vial by the water you added: mg ÷ mL = mg/mL. This tells you how many mg are in each mL.
Volume — the dose divided by that concentration: dose ÷ (mg/mL) = mL.
Units — on a U-100 syringe one unit is 0.01 mL, so mL × 100 = units. A U-40 unit is 0.025 mL, so the wrong barrel is a 2.5× error. That is why the calculator asks which one you have.
Rounding gap — the exact draw against the nearest syringe line: |exact − nearest line| ÷ exact × 100 = % difference.
Medically reviewed by Jennifer Montecillo, MD · non-practicing medical reviewer·Reviewed 2026-08-12·open the primary sources
Useful guides for this calculation
The math is only one part of the question. These guides cover the compound, published doses, side effects, mixing steps and supplies.
Both offered volumes produce easy-to-read draws. A 5 mg vial becomes 2.5 mg/mL with 2 mL of water or 1.67 mg/mL with 3 mL.
The 200 micrograms the tool opens on draws exactly 8 units at the first and exactly 12 at the second. Whole numbers at every preset is unusual, so the water is not deciding whether you can read the syringe. It decides how much liquid goes under the skin.
How to reconstitute a 5mg vial of CJC-1295?
The strength is 5 divided by the water you added, and nothing later in the process changes it. At 2 mL each U-100 unit carries 25 micrograms. At 3 mL each carries 16.7.
What the vial cannot tell you is which molecule is inside. Two substances ship under this name at the same 5 mg strength. Only the version carrying the drug-affinity arm has a published human study behind it.
How much BAC water to add to CJC-1295 Ipamorelin?
Nothing published tells you, because no trial has ever given CJC-1295 and ipamorelin to a person together. Searches of both registries in August 2026 found no study of the pair. The one record naming both built a drug test for horse blood.
The blend people search for holds 5 mg of each. At 3 mL that is 1.67 mg/mL of each, so one unit carries 16.7 micrograms of both. You set the syringe once and take away whatever ratio the filler chose.
How much bacteriostatic water for 5mg CJC-1295?
The same two volumes, and here the choice only changes how long the mixed vial lasts. At 200 micrograms a draw, a 5 mg vial holds 25 draws either way, because the powder sets that count.
The water changes the liquid per injection: 0.08 mL at 2 mL, 0.12 mL at 3 mL. One thing to know before converting anything here — every quantity in the human papers scales with body weight. A flat microgram figure did not come from them.
3primary sources, each with the day we read it — open the documents used on this page