Peptide Tools & Calculators
Free calculators and tools for peptide research. Calculate reconstitution volumes, dosages, unit conversions, and more.
6 tools available
Bacteriostatic Water Calculator
Bacteriostatic water contains 0.9% benzyl alcohol, which inhibits bacterial growth and extends the shelf life of reconstituted peptides to approximately 28-30 days when refrigerated. The amount of BAC water you add directly determines the concentration of your solution, which in turn affects how much volume you need to draw per dose. Adding more water creates a more dilute solution (easier to measure small doses) while adding less creates a more concentrated solution (fewer injections needed for larger doses). This calculator helps you find the sweet spot for your specific protocol.
Open ToolBMI Calculator for Peptide Research
BMI is calculated from height and weight and provides a general categorization of body composition. In peptide research, BMI serves two important purposes: it helps calibrate weight-based dosing protocols (mcg/kg) and it provides a standardized metric for tracking body composition changes over time. This calculator computes your BMI, classifies it according to WHO categories, and explains the relevance to common peptide research areas including GLP-1 agonists, growth hormone secretagogues, and metabolic peptides.
Open ToolPeptide Half-Life Calculator
Half-life is the time required for the concentration of a peptide in the bloodstream to decrease by 50%. After one half-life, 50% of the peptide remains; after two half-lives, 25% remains; after five half-lives, the compound is considered effectively eliminated (less than 3.125% remaining). This calculator models the decay curve for any peptide based on its known half-life, showing you the remaining concentration at any time point. It also calculates steady-state levels for repeated dosing protocols, helping optimize injection frequency for consistent blood levels.
Open ToolInjection Site Guide
Most research peptides are administered via subcutaneous (SubQ) injection into the fatty tissue layer just beneath the skin. Site selection affects absorption rate, comfort, and the risk of injection site reactions. This interactive guide maps the primary injection sites for peptide research, provides visual references for proper technique, and includes a rotation schedule to prevent lipodystrophy (changes in fat tissue at injection sites). Proper site rotation distributes the mechanical stress of injections and allows previous sites to fully recover between uses.
Open ToolPeptide Stack Builder
The Peptide Stack Builder is an interactive tool that helps researchers design multi-peptide protocols based on specific research objectives. Select your primary goal (healing, body composition, anti-aging, cognitive enhancement, or general wellness), and the builder suggests evidence-based combinations with synergistic potential. For each stack, the tool provides dosing guidelines, optimal timing for each compound, injection scheduling to minimize the number of daily injections, and flags any known or theoretical interactions between compounds. It also estimates the total daily injection volume and monthly cost for budget planning.
Open ToolPeptide Unit Converter (mcg/mg/IU)
Peptide dosages are expressed in different units depending on the compound, the source, and the research protocol. Micrograms (mcg) are the most common unit for peptides like BPC-157 and Ipamorelin, while milligrams (mg) are used for larger doses such as TB-500 loading phases. International Units (IU) are used for compounds like HGH, HCG, and insulin. This converter lets you move seamlessly between units, reducing calculation errors that could affect your research outcomes. Note that IU conversions are compound-specific because each substance has a unique biological potency per milligram.
Open Tool