Pick the vial, the water you added and the dose. Get the exact draw in units for the syringe in your hand.
Draw to30.0units0.30 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 10 mg 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
30.0units
0.30 mL · 3.33 mg/mL · 33 mcg per unit · 10 doses per vial
30.0 units on a U-100 insulin syringe · 1 mL · lines every 2 units, which is 0.30 milliliters. The draw lands on a syringe line.
Easy to read on this syringe. Draw to the 30-unit line. No rounding is needed.
10 mg ÷ 3 mL = 3.33 mg/mL → 33 mcg/unit · 1 mg = 0.300 mL =30.0 units
Your address is used to send this one card. The email also includes an optional link for updates when our data changes. Nothing else is sent unless you choose that link, and you can unsubscribe anytime.
Show the math and syringe details+
Can this syringe show the result clearly?
Easy to read on this syringe.30.0 u is exactly the 30-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 1 mg 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.
MOTS-c is a peptide sixteen amino acids long. What makes it unusual is where it is coded: inside mitochondrial DNA, not in the cell nucleus that codes for nearly everything else. It is sold for fat loss, exercise capacity and metabolic aging, on the observation that blood levels fall as people get older.
The metabolic results are mouse experiments, injected into the abdomen. Levels do fall with age in people. But falling with age is not the same as helping when topped up, and nobody has tested the second thing. No trial has published a dose for a person.
No completed controlled human trial has shown which dose works for MOTS-c. There is no study-backed human dosing program to publish. Animal quantities are not converted into a human recommendation.
no human dose shown to work
The calculator converts the dose you enter into mL and syringe units. It does not show that any dose of MOTS-c is safe or works.
Examples using a 10 mg MOTS-c vial
Each row starts with the same 10 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: 1 mg
For a 10 milligram vial: bacteriostatic water added, resulting concentration, micrograms per U-100 unit, and the draw for a 1 mg dose.
Water added
Concentration
Per U-100 unit
Draw for 1 mg
Nearest syringe line
2 mL
5.00 mg/mL
50.0 mcg
20.0 u · 0.200 mL
exactly 20 u
3 mL
3.33 mg/mL
33.3 mcg
30.0 u · 0.300 mL
exactly 30 u
The vial, water and dose shown here are the calculator’s starting example for MOTS-c. Replace them with your own values. Every result in the table is calculated from those inputs.
Drawn from once a week at 1 mg, a 10 mg vial yields 10 doses — about 10.0 weeks of supply. No cited source says how long the mixed vial keeps, so no storage window is shown.
The vial decides the concentration; nothing decides the dose
Every other page here starts from a quantity somebody studied and works out the draw. This one cannot. No trial has ever published an amount of MOTS-c given to a person, so the figure the tool opens on is a starting point for the arithmetic and nothing more.
3Open the mixing details — 3 notes
Nothing published says what to draw
Everything on record is mouse work, cell work, or measurements of the peptide people already make themselves. None of that is a dose. Blood levels falling as someone ages says nothing about how much to put back, or whether putting any back helps.
A registration for a trial does exist. It sits in a set of entries filed by one sponsor in which several openly describe themselves as fictional examples, so it is not evidence that anyone has been given this peptide, and this site does not treat it as any.
The tool still does the part that is real
The arithmetic is honest even when the dose is not established. Whatever amount you enter, the concentration and the draw that follow from your vial and your water are exact, and the barrel you pick changes what those marks mean.
That is the useful half. It tells you what you would be drawing, which is worth knowing precisely because nobody can tell you what you should be.
The presets set a concentration and nothing more
The vial sizes and water volumes on this page are the ones sellers ship. No study picked them, and no protocol endorses them.
A concentration landing on a neat number is not evidence of a sensible dose. Reading it that way runs the arithmetic backwards. The concentration is downstream of the vial. The dose is downstream of nothing at all here.
The animal quantities are exact, and not one of them can reach this vial
No trial has published an amount of MOTS-c given to a person, so there is no human quantity for this page to convert. The mouse work does carry exact quantities. Every one is set by body weight and goes into the abdomen. That puts them two steps away from the syringe this page models.
4Read the supporting evidence — 4 supporting notes
Per kilogram, into the abdomen: two walls, not one
The mouse quantities are stated per kilogram of animal. A per-kilogram figure needs a body weight before it becomes a mass. The calculator takes a mass. So the arithmetic stops one step before it can start.
There is not even a convention with a source attached
Several records on this site carry an amount nobody studied. It is written down in a peer-reviewed review of what people give themselves. That is weak evidence. It is still a report with an author, a table and a caveat beside it.
The measurements behind the idea do not agree with each other
The reason people give for taking it starts with a measurement. Levels in blood fall as people age. That measurement is less settled than it sounds.
The vial strengths did not come from a clinical protocol
Two vial strengths were repeatedly listed, with the larger one more common. Neither comes from a human protocol, pharmacy instruction or approved label.
Units to dose at 3.33 mg/mL
Mix 10 mg into 3 mL and one U-100 unit carries 33.3 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 3.33 milligrams per milliliter.
U-100 line
Volume
Mass (mcg)
Mass (mg)
10 u
0.10 mL
333 mcg
0.333 mg
20 u
0.20 mL
667 mcg
0.667 mg
30 u
0.30 mL
1,000 mcg
1 mg
40 u
0.40 mL
1,333 mcg
1.333 mg
50 u
0.50 mL
1,667 mcg
1.667 mg
60 u
0.60 mL
2,000 mcg
2 mg
70 u
0.70 mL
2,333 mcg
2.333 mg
80 u
0.80 mL
2,667 mcg
2.667 mg
90 u
0.90 mL
3,000 mcg
3 mg
100 u
1.00 mL
3,333 mcg
3.333 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 2026-08-13
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.
With a 10 mg vial, 2 mL or 3 mL gives 5 or 3.33 mg/mL. With a 5 mg vial, it gives 2.5 or 1.67 mg/mL. A 1 mg amount therefore draws 20, 30, 40 or 60 units.
Every one of those is comfortable to read, and that is the least important thing on this page. No trial has ever published a dose of MOTS-c in a person. The water choice is the only part of this arithmetic anyone has settled.
How do I reconstitute 10 mg of MOTS-c?
A 10 mg vial makes the stronger two combinations. At 2 mL each unit carries 50 micrograms, and at 3 mL each unit carries 33.3 micrograms.
So a 1 mg draw is 20 units or 30. Neither figure describes a studied amount, because no studied amount exists. Every quantity in the mouse work went into the abdominal cavity and scaled with body weight.
How to mix MOTS-c peptides?
The vial sizes and water volumes are common examples, not values chosen by a human trial or approved protocol.
The mixing itself is exact. Milligrams divided by milliliters gives the strength, and one U-100 unit is a hundredth of a milliliter of it. What the arithmetic cannot supply is the number you feed into it.
How long will a 40 mg vial of MOTS-c last?
A 40 mg vial contains forty 1 mg amounts. The preset 5 mg and 10 mg vials contain five and ten. Adding water changes the volume of each draw, not the number of doses in the vial.
A 40 mg vial in 3 mL would be 13.3 mg/mL, and 1 mg would read 7.5 units. A short draw from a large vial is what packing more powder into the same liquid always produces.