Free peptide calculators
Every PepGuru calculator is free, needs no signup, and returns clean U-100 syringe units. Pick the general reconstitution tool, or a per-compound calculator with reference math built in.
Reconstitution Calculator
Any single lyophilized peptide — vial mg, water, dose → concentration and U-100 units.
Open calculator →Stack & Blend Calculator
Per-component math for multi-peptide vials (GLOW, KLOW, custom blends).
Open calculator →Stack Checker
Pick 2–5 compounds and get a pairwise compatibility matrix — synergy, caution or receptor conflict.
Open calculator →Unit Converter
mcg to mg, IU to mg with the correct per-substance factor, and mL to U-100 syringe units.
Open calculator →GLP-1 Titration Calculator
Published Sema/Tirz/Reta escalation steps converted to exact syringe units for your vial.
Open calculator →Retatrutide Calculator
Retatrutide vial math with GLP-1 titration-style reference tables.
Open calculator →Tirzepatide Calculator
Common 10 and 20 mg/mL setups converted to exact syringe units.
Open calculator →Semaglutide Calculator
Small milligram amounts with readable-draw reference math for 5 and 10 mg vials.
Open calculator →GHK-Cu Calculator
Small mg/mcg copper-peptide doses with readable-draw reference math.
Open calculator →BPC-157 Calculator
Microgram dosing and small-draw readability for 5 and 10 mg vials.
Open calculator →TB-500 Calculator
Milligram dosing with loading/maintenance reference math.
Open calculator →MOTS-c Calculator
mg or mcg entries for small daily or larger weekly draws.
Open calculator →NAD+ Calculator
Milligram NAD+ doses with large-draw and buffered-vial context.
Open calculator →Tesamorelin Calculator
GHRH-analog vial math for 5 and 10 mg vials in clean syringe units.
Open calculator →Epitalon Calculator
Larger milligram Epitalon draws with 10, 20, and 50 mg vial reference math.
Open calculator →Semax Calculator
Microgram nootropic amounts with readable-draw math for 10 and 30 mg vials.
Open calculator →PT-141 Calculator
Bremelanotide vial math converting small mg amounts to exact units.
Open calculator →Melanotan II Calculator
Microgram melanocortin draws with 10 mg vial reference tables.
Open calculator →GLOW Blend Calculator
BPC-157 + GHK-Cu + TB-500 in one vial — what each component delivers per draw.
Open calculator →KLOW Blend Calculator
GLOW plus KPV — per-component amounts for the four-peptide vial.
Open calculator →BPC-157 + TB-500 Calculator
The two-component recovery pairing, split per draw.
Open calculator →CJC-1295 + Ipamorelin Calculator
GH-axis pairing — per-component micrograms from a shared vial.
Open calculator →Sermorelin Calculator
GHRH 1-29 vial math in microgram amounts with readable-draw reference tables.
Open calculator →Ipamorelin Calculator
Selective GH secretagogue — microgram draws from a 10 mg vial.
Open calculator →IGF-1 LR3 Calculator
Sub-milligram vial math where the whole vial is 100 mcg — a different scale entirely.
Open calculator →KPV Calculator
Lys-Pro-Val tripeptide draws, standalone or as the fourth KLOW component.
Open calculator →Glutathione Calculator
Large-milligram vial math where draws exceed a 1 mL insulin syringe.
Open calculator →AOD-9604 Calculator
hGH fragment 176-191 — microgram draws from a 5 mg vial.
Open calculator →L-Carnitine Calculator
Large-volume levocarnitine math — and how to handle a pre-mixed solution.
Open calculator →LIPO-C Calculator
Lipotropic complex on a total-milligram basis, with the per-component caveat.
Open calculator →Selank Calculator
Tuftsin-derived heptapeptide draws, injectable or intranasal concentration.
Open calculator →DSIP Calculator
Delta sleep-inducing peptide — small microgram draws from a 5 mg vial.
Open calculator →Thymosin Alpha-1 Calculator
Thymalfasin vial math at the low-milligram scale the approved product uses.
Open calculator →Thymalin Calculator
Thymic extract on a total-milligram basis, with the batch-consistency caveat.
Open calculator →CJC-1295 with DAC Calculator
The albumin-bound, week-long form - and why it is not the no-DAC version.
Open calculator →Follistatin Calculator
A 1 mg vial - ten times smaller than a standard peptide vial.
Open calculator →Dihexa Calculator
Angiotensin IV analog math, plus the solubility problem nobody mentions.
Open calculator →Adamax Calculator
Reliable arithmetic for a compound with almost no published literature.
Open calculator →Melanotan I Calculator
Afamelanotide vial math - and why the approved implant is not comparable.
Open calculator →Kisspeptin-10 Calculator
Reproductive-axis decapeptide with a half-life measured in minutes.
Open calculator →Beyond the calculators
Peptide Finder Quiz
Answer two questions and get matched to the compounds most studied for your research goal.
Take the quiz →COA Checklist
Grade a Certificate of Analysis against 7 quality criteria and get an instant verdict.
Grade a COA →Peptide Library
Browse research compounds by goal, each linked to its calculator and a verified source.
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