Use our Peptide Calculator below to calculate accurate dosages for administering peptides using a syringe. Select your parameters and the calculator will give you the results.

DRAW & DOSE CALCULATOR

Peptides

Dose of Peptide

0.25 mg ≈ 250 mcg (μg)

Vial size

Peptide Strength

corresponds with the size of your vial

Common Strengths
BPC-157: 10mg
NAD+: 1000mg
Bacteriostatic Water

Bacteriostatic Water

determines peptide concentration

Common Amounts
GLP-1s: 2mL – 3mL
Peptides: 3mL
NAD+: 5mL

Result

PEPTIDE DOSE
— mg
DRAW SYRINGE TO
— units
YOUR VIAL CONTAINS
— doses
CONCENTRATION
— mg/mL
010203040 5060708090100

For research and educational use only. Not medical advice. Not intended for diagnosis, treatment, or dosing calculations. — Methodology & sources

Methodology & Sources

Volume per dose is computed as: mL = dose (mg) ÷ concentration (mg/mL). Insulin syringes (U-100) display 100 units per mL, so units = mL × 100. Doses per vial: vial strength (mg) ÷ dose (mg). Concentration: vial strength (mg) ÷ diluent volume (mL).

  1. U-100 conversion overview (1 mL = 100 units): Defy Medical – How to read an insulin syringe. :contentReference[oaicite:0]{index=0}
  2. Another reference on U-100 units↔mL: PetPlace – U-100 insulin conversion. :contentReference[oaicite:1]{index=1}
  3. Basic concentration (mg/mL) & dilution principles: PharmaCalculation – Concentration & dilution. :contentReference[oaicite:2]{index=2}
  4. Definition/usage of bacteriostatic water for reconstitution: PeptideSystems – What is bacteriostatic water?. :contentReference[oaicite:3]{index=3}
  5. Comparable peptide calculators (for parity check only): PepDose, Jay Campbell, DirectVision Labs. :contentReference[oaicite:4]{index=4}

Peptide Calculator

 

Molecular Weight, pI & Net Charge (Research Calculator)

Enter an amino-acid sequence to compute molecular weight (average/monoisotopic), net charge at a given pH, theoretical pI, GRAVY, and ε280. Outputs are for laboratory math only; no clinical guidance is provided.

Reconstitution & Unit Conversion (Draw & Dose)

Our on-page peptide calculator (below) converts between mg, mL, and U-100 insulin syringe units for research solution prep. Provide vial strength (mg), bacteriostatic water (mL), and a target mass (mg) per draw to get: concentration (mg/mL), units to draw, and doses per vial.

  • Concentration (mg/mL) = Vial strength (mg) ÷ Water (mL)
  • mL per target = Target mass (mg) ÷ Concentration
  • Units (U-100) = mL × 100 (1 mL = 100 units)
  • Doses/Vial = Vial strength ÷ Target mass

Where this information comes from

The formulas are standard stoichiometry and dilution math used in lab settings (see also C1V1 = C2V2). The U-100 convention (100 units = 1 mL) is widely used for volume markings. This page is FRUO and does not supply medical or administration instructions.

Step-by-step example

  1. Choose vial strength = 30 mg and water = 3.0 mL → concentration = 10 mg/mL
  2. Set target mass = 0.5 mg → volume per target = 0.05 mL → draw = 5 units (U-100)
  3. Doses per vial = 30 ÷ 0.5 = 60 doses

Quick examples (educational)

Vial (mg) Water (mL) Target (mg) Conc. (mg/mL) Units (U-100) Doses/Vial
5 0.5 0.25 10 2.5 20
10 2.0 1.0 5 20 10
30 3.0 0.5 10 5 60

Peptide Calculator — FAQs

Is this a dosing/medical tool? No. It’s a lab reconstitution calculator (FRUO).

What do “units” mean? U-100 syringe marks (100 units = 1 mL).

How to reach a specific mg/mL? Pick mg & mL so that mg ÷ mL = target mg/mL.

Support for μg? Enter mg as decimals (0.25 mg ≈ 250 μg).

Can I use U-40? Convert: units = mL × 40.

Related resources

For research and educational use only (FRUO). No medical, clinical, therapeutic, or performance claims are made or implied.