Peptide Calculator

Enough to make your dose land on an easy-to-read tick. A common starting point is 1 mL per 5 mg of powder, so a 5 mg vial gets 1 mL and a 10 mg vial gets 2 mL. For small doses like 250 mcg of BPC-157, 2 mL in a 5 mg vial gives a 10-unit draw, which is easier to read than 5 units. The Water step shows every option side by side.

It turns three numbers, the mg in your vial, the mL of water you add and the dose you want, into one answer: how many units to pull on your syringe. It also gives the concentration, how many doses the vial holds and when to throw it out. The point is to take the arithmetic out of the moment you are holding a needle.

A U-100 insulin syringe, which means 100 units per mL, with a fixed 29 to 31 gauge needle. They come in 0.3 mL, 0.5 mL and 1 mL sizes and are sold at most pharmacies. Do not use a U-40 syringe; its units are a different size.

Work out the strength first: vial mg divided by water mL gives mg/mL. Multiply by 10 and you have mcg per unit, then divide your dose by that. Example: 5 mg in 2 mL is 2.5 mg/mL, so 25 mcg per unit, so a 250 mcg dose is 10 units.

Mixed with bacteriostatic water and kept in the fridge at 2 to 8 °C (36 to 46 °F), most peptides are good for about 4 weeks. The calculator assumes 30 days unless the peptide has its own figure. Mixed with plain sterile water, use it the same day. Never freeze a mixed vial.

Sterile water with 0.9% benzyl alcohol added as a preservative. The alcohol stops bacteria growing in the vial between draws, which is what makes a multi-dose vial safe to keep for weeks. It is sold in 10 mL and 30 mL bottles. Plain sterile water has no preservative and is for single use.

Yes. For a powder vial, use it like any other peptide. For a compounded vial that arrives as liquid, choose the pre-mixed option and enter the mg/mL on the label. The Schedule step also has weekly titration ladders for the GLP-1 peptides, so the draw steps up with you.

Multiply your weight in kilograms by the mcg/kg figure. 80 kg at 5 mcg/kg is 400 mcg per injection. If you know your weight in pounds, divide by 2.2 to get kilograms. Choose "by body weight" in the Dose step and the calculator does this and converts the result to units.

Subcutaneous goes into the fat just under the skin, usually the belly or thigh, with a short insulin needle. Intramuscular goes deeper into muscle and needs a longer needle. Most peptides are injected subcutaneously. The units on your dose card are the same either way; only the needle and the site change.

In the fridge, upright, out of light, at 2 to 8 °C. Wipe the stopper with an alcohol swab before every draw and use a new needle every time. Write the mixing date on the vial. The dose card shows your discard date so you never have to count.

The math is plain division and unit conversion, checked by automated tests. The answer is only as good as the numbers you type, so read the vial label carefully and check the unit (mg or mcg). The calculator flags doses that look a thousand times off, but it cannot see your vial. It is not medical advice.

For injections under the skin, 29 to 31 gauge and 5/16 to 1/2 inch (8 to 13 mm) long. That is what comes fitted to standard insulin syringes. A higher gauge is thinner and hurts less. Use a fresh one every time, since a needle dulls after one pass through rubber.

None. A pre-mixed vial is already at its final strength. Choose the pre-mixed option and enter the concentration from the label in mg/mL. If the label gives total mg and total mL instead, divide the two: 10 mg in 2 mL is 5 mg/mL.

Pick a ladder in the Schedule step. Each step has a dose and how many weeks it lasts, and the last step holds until your cycle ends. The calculator uses the dose for the week you are in, so units, vials and cost follow the ladder. If the top step will not fit your syringe, you get a warning up front.

Total doses divided by doses per vial, rounded up, with the discard date taken into account. A 5 mg vial at 250 mcg daily holds 20 doses, so an 8-week cycle of 56 doses needs 3 vials. The Supplies step shows this, plus the bacteriostatic water and syringes to go with it.

Two clocks run at once. Doses left is vial mg divided by dose; the discard date is how long the mixed liquid stays good, about 30 days with bacteriostatic water. At small doses the calendar runs out before the peptide does. Smaller vials fix it; less water does not, because the peptide is still all in there.

Yes, up to four. Add a peptide and each one gets its own tab with its own vial, water, dose and schedule, while the calendar, supplies and cost add them together. If you draw two into one syringe, add the unit counts and make sure the total fits the barrel.

No. The peptide in the vial is fixed; water only changes how much liquid carries each dose. More water means more units for the same mcg, which makes tiny doses easier to read, and less water keeps big doses from overflowing the syringe. Your dose in mcg is the same either way.

For most peptides, a box of 0.5 mL U-100 insulin syringes with 30 or 31 gauge needles. Buy 1 mL if your draw is over 50 units, or 0.3 mL if it is under about 10. Check the barrel says U-100. You also need one plain 1 mL or 3 mL syringe per vial for mixing.

Open it and the calculator loads with their exact settings: peptide, vial, water, dose, syringe and schedule. Check the Mix and Dose steps against your own vial before you trust the units. Nothing about the person who shared it is in the link, only the settings.