§ FREE TOOLS · INDEPENDENT · 17 CALCULATORSCONNECTED TO LIVE LAB DATA
Independent · 17 free calculators

Peptide tools, built on real data.

17 calculators for reconstitution, dosing, blends, and shop comparison. Every tool connects to live lab test data on Peptigrity — so you can verify what you're calculating against. Free, no signup, no ads.

Total tools
17
Peptides covered
71
Lab tests connected
10,489
Cost to use
Free

Reconstitution & dosing

3 tools · core dosing math
Peptide Calculator
Flagship tool
Select a peptide, enter vial size and BAC water volume, and get exact syringe units, concentration, doses per vial, and protocol cost. Covers all 71 peptides on the site — presets for the common ones, custom mode for the rest.
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Reconstitution Calculator
Simplified vial-to-syringe math with unit conversions and compound-specific reconstitution notes. For users who want fewer inputs than the flagship calculator.
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BAC Water Calculator
Calculate exactly how much bacteriostatic water you need based on vial size, target dose, and syringe type. Use this before reconstituting.
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Compound-specific calculators

7 tools · pre-loaded protocols
Tirzepatide Calculator
GLP-1 / GIP
Pre-loaded tirzepatide dosing with 6-tier titration table (2.5–15 mg weekly), vial size guide (5–60 mg), and syringe capacity warnings.
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Semaglutide Calculator
GLP-1
Pre-loaded semaglutide dosing with 5-tier dose escalation, unit conversion reference, and B12 compound guidance.
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Retatrutide Calculator
Triple-agonist
Pre-loaded retatrutide dosing with Phase 2/3 titration protocol and triple-agonist (GLP-1/GIP/glucagon) reference.
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BPC-157 Calculator
Tissue repair
Pre-loaded BPC-157 dosing by injury type with oral vs injection guidance and Wolverine stack reference.
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GHK-Cu Calculator
Skin / hair
Injection dosing by goal (skin, hair, healing) for 50–200 mg vials. Includes copper-tint normalcy notes.
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MOTS-C Calculator
Metabolic
Bolus, intermittent, and low-dose daily protocols for metabolic optimization. Single-vial weekly dose modelled.
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Tesamorelin Calculator
GHRH
FDA-approved 2 mg protocol, visceral fat dosing, and GHRH analog comparison.
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Blend calculators

3 tools · multi-peptide vials
Blend Calculator
Custom blends
Multi-peptide vial dosing for GLOW, CJC/Ipa, BPC-157/TB-500, and custom blends. Get per-peptide syringe units from a single draw.
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CJC-1295 + Ipamorelin Calculator
GH stack
GH secretagogue blend dosing, cycling guidance, and DAC vs no-DAC comparison.
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BPC-157 + TB-500 Calculator
Wolverine stack
Wolverine stack blend dosing with loading vs maintenance phases and standalone TB-500 reference.
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Analysis & comparison

4 tools · cross-shop / cross-brand
Cost-per-Dose Calculator
Find your cost per dose, per day, per week, and per month. Plan your budget accurately across vendors.
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Purity Comparison Tool
Unique to Peptigrity
Compare lab-tested HPLC purity across brands for any peptide. Built on independent lab tests — the largest open verification database.
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Reverse Calculator
Convert syringe units back to mg/mcg, find the right BAC water volume for a target concentration, or verify your draw.
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Peptide Log Sheet
Printable
Free printable tracker. Twelve weeks on one page — dose, injection site, weight, side effects — with a reconstitution and baseline header.
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Related resources

How to test your peptidesBrowse testing laboratoriesBrowse peptidesBrowse shopsHow to reconstitute peptidesHow to calculate doses