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Peptide Calculator
Reconstitution Calculator
Get the dose right.
Choose your product (or enter any vial size), the bacteriostatic water you’re adding and the target research dose — the exact syringe draw is calculated instantly, with blends broken down compound by compound. For laboratory research use only.
1
Your product (optional)
This is a blend. Calculate the dose by:
Pick one of our products and the vial size fills in automatically. Blends are broken down compound by compound.
2
Peptide in the vial
The amount printed on the vial label. 10 mg = 10,000 mcg
3
Bacteriostatic water added
More water = a larger draw for the same dose, which is easier to measure precisely on an insulin syringe.
4
Target dose per draw
500 mcg = 0.5 mg
5
Syringe
Standard U-100 insulin syringes: 100 units = 1 ml on every size.
Draw
10units
= 0.10 ml on a 1 ml (100-unit) insulin syringe
Concentration
5,000mcg / ml
= 5 mg / ml
Doses per vial
20doses
at 500 mcg each
Fill to the 10-unit mark
units = (dose ÷ concentration) × 100 · concentration = vial mcg ÷ water ml
For laboratory research use only — verify calculations independently.
Common questions
Need a hand?
Does this work for any lyophilised peptide?
Yes. The calculation is compound-agnostic — it only depends on the total peptide mass in the vial, the volume of bacteriostatic water added, and the target dose. Enter those three values and the maths is identical for any lyophilised research peptide.
How does the calculator handle blends like KLOW or GLOW?
Choose the blend in step 1 and the calculator loads its exact composition — for example KLOW 80mg is 50mg GHK-Cu, 10mg BPC-157, 10mg TB-500 and 10mg KPV. You can enter the dose as the whole blend or as any single compound in it, and the breakdown table shows how much of every compound is in each draw.
Why do my results change when I use 1ml vs 2ml of bac water?
The amount of peptide in the vial never changes — only the concentration does. With 2ml instead of 1ml, each ml contains half as much peptide, so the same target dose requires twice the draw volume. More water means larger, easier-to-measure draws; less water means smaller draws that fit more doses into one syringe.
What’s the difference between mcg and mg?
1 milligram (mg) = 1,000 micrograms (mcg). Vials are labelled in mg; research doses are usually described in mcg. A 10mg vial contains 10,000mcg in total. Use the mg / mcg toggles above to enter values in whichever unit you have — the calculator converts for you.
What should I do if my calculated draw exceeds the syringe size?
Either reconstitute with less bacteriostatic water (raising the concentration so the same dose needs a smaller draw), or split the dose across two separate draws. The calculator flags this automatically when the draw exceeds the capacity of the syringe you’ve selected.
Is this calculator suitable for human use?
No. This tool, and all products supplied by Bangkok Peptides, are strictly for in-vitro laboratory research. Nothing on this page is medical or dosing advice, and our products are not for human or veterinary use.
How accurate is this calculator?
The arithmetic is exact for the values you enter, using the standard reconstitution formula. Real-world accuracy depends on measuring the water volume precisely and on the stated vial content — always verify calculations independently before relying on them in your work.
