Peptide calculator
Enter the vial size, the BAC water you mixed it with and your dose. The calculator works out the concentration, the volume to draw and where to draw to on a 1 ml insulin syringe, with the same arithmetic as the Peptidly app.
Draw to
Type your dose above. The draw appears here.
—IU
— ml · 1ml insulin syringe
- Concentration
- 5.00mg/ml
- Doses / vial
- —
BAC water is bacteriostatic water, used to mix a powdered vial. Units are the marks on a 1 ml insulin syringe; the app shows them as IU. The calculator only does arithmetic on the numbers you enter. It does not recommend a dose or a compound. Either a comma or a dot marks a decimal, so type thousands without a separator.
Reconstitution maths, with your numbers.
Three steps, the same ones the app takes. Change a number in the calculator and each line follows it, so you can check the draw for yourself.
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Concentration
vial size ÷ BAC water
Enter the vial size and the BAC water.
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Volume to draw
your dose ÷ concentration
Your dose is in micrograms and the concentration in milligrams per millilitre, so the concentration is multiplied by 1000 first and shown to three decimal places.
Enter your dose.
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Syringe units
volume to draw × 100
A U-100 insulin syringe has a hundred units to the millilitre. The draw card shows the volume to three decimal places and the units to one, as the app does; on an exact half the two can land a step apart.
Enter your dose.
mg, mcg, ml and units, pinned down.
The three conversions behind every draw.
- 1 mg = 1000 mcg
- A milligram is a thousand micrograms. The calculator takes the vial in milligrams and your dose in micrograms.
- 100 units = 1 ml
- That is the scale on a U-100 insulin syringe.
- 1 unit = 0.01 ml
- Each unit is a hundredth of a millilitre.
Peptide calculator questions.
Is this a peptide dosage calculator?
It works out the draw for a dose you enter, and nothing more. It never suggests how much to take, how often or which compound. Always consult a qualified clinician before starting, changing or stopping any protocol.
How many mcg are in a mg?
A thousand: 1 mg = 1000 mcg. That is why the calculator multiplies the concentration by 1000 before dividing your dose by it.
How do I convert mcg to units?
Divide your dose in mcg by the concentration in mcg per ml, then multiply by 100 for a U-100 insulin syringe. The calculator above does it for you and shows each step.
How much is one unit on an insulin syringe?
On a U-100 insulin syringe, one unit is a hundredth of a millilitre: 100 units = 1 ml. The app labels these marks IU.
What is BAC water?
Bacteriostatic water, used to mix a powdered vial. Enter the volume you added; the calculator divides the vial by it to get the concentration.
Is anything I type sent anywhere?
No. The calculator runs in your browser and nothing you type leaves it. The page sets no cookies. Like any website it is served by a host, GitHub Pages, which sees the usual request data; the privacy policy has the details.
Is it the same maths as the app?
Yes. This page uses the app's own arithmetic, and it is tested against the app's functions on thousands of combinations of vial, water and dose.
Can I keep the vial I worked out?
In the app. Peptidly saves the vial you mix, takes off every dose you log and warns you before it runs out.
Keep the vial you just worked out.
Peptidly remembers the vial you mixed, takes off every dose you log and tells you before it runs out. Free to start, with no ads.
