Peptide dosage
calculator
A free peptide dose calculator and dosage calculator: set the vial, set the diluent, then select a dose to read concentration, draw volume, and the exact units on a U-100 syringe. Prepared for research protocol work, with the math shown rather than hidden.
Add the calculator to your home screen
Opens full screen, no address bar, and the maths keeps working offline.
Add it in three taps
On a phone it lands next to your other apps. On a computer the same button installs it as an app window, or you can simply bookmark researchprotocols.net/calculator.
Peptide dose calculator
vial · diluent · dose → unitsNamed blends are prefilled from the published blend reference. A custom blend uses only the amounts you enter.
Vials required for Cycle
Estimate how much material you need for a full cycle, including cycle length and the number of cycles you plan to run.
How the draws stack up
A first-order model of depot absorption and elimination, run on the draws and cadence above. Pick the half-life from whatever your own source documents — this page does not assume one per compound. A planning sketch — not a prediction for any compound or any individual.
Modelled level across the cycle. Each spike is one draw.
The dose to units math
Three steps convert a dose into a syringe reading, and the calculator above performs them live:
vial (mg) ÷ diluent (mL) mg/mL dose (mg) ÷ concentration (mg/mL) mL volume (mL) × 100 units · U-100 A U-100 syringe reads 100 units per millilitre, which is where the ×100 comes from.
A 10 mg vial reconstituted with 2 mL of bacteriostatic water is 5 mg/mL. A 0.5 mg reference dose therefore draws 0.1 mL — 10 units. Change the diluent to 5 mL and the concentration drops to 2 mg/mL, so the same 0.5 mg dose now draws 25 units. The peptide delivered is identical; only the volume changes.
Worked examples
- 10 mg vial, 2 mL BAC, 0.25 mg dose — 5 mg/mL → 0.05 mL → 5 units.
- 5 mg vial, 2 mL BAC, 0.25 mg dose — 2.5 mg/mL → 0.1 mL → 10 units.
- 50 mg vial, 3 mL BAC, 2 mg dose — 16.67 mg/mL → 0.12 mL → 12 units.
Looking for the reference chart instead?
The peptide dosage chart lists the reference dose, concentration, and U-100 units for every compound in the archive in one table. Use this calculator when you want to change the vial, diluent, or dose yourself; use the chart when you want the standard reference row for a specific peptide.
Blend mode
Fixed-ratio blends do not work through single-compound maths: a 70 mg GLOW vial is not a 70 mg dose of anything. Switch the calculator to Blend and the components become the vial — the total mass across the blend sets the concentration, and the readout gains a per-component table showing what each draw actually delivers of every compound.
- Named blends — pick GLOW, KLOW, Tri-Heal, Wolverine (BPC-157 + TB-500), CJC-1295 + Ipamorelin, Tesamorelin + Ipamorelin, or AOD-9604 + CJC-1295 + Ipamorelin. Each composition is prefilled from the published blend reference and shown with its source.
- Custom blend — build your own from up to four compounds in the archive and enter the milligrams of each. A 50 mg + 10 mg blend is calculated as a 60 mg vial.
Every protocol page for a documented blend opens this calculator already in blend mode with that blend loaded. Compounds only appear with a composition where the reference actually documents a per-component split — where it does not, the page stays single-compound rather than inventing a ratio.
Doses in blend mode are set by the primary compound — the largest share of the blend. You pick GHK-Cu 1–4 mg (or BPC-157 250 mcg on a 5 + 5 blend), and the calculator works out the draw and what the rest of the blend delivers alongside it. Amounts read in mcg until they pass 1000 mcg, then in mg.
Related tools
- Stack planner — weekly scheduling for combination protocols.
- Mixability reference — which compounds can share a syringe.
- Topical formulation protocols — copper-peptide hair serums.
- Availability reference — vial sizes and release formats.