PEPTIDE WORKBENCH
Peptide Reconstitution Calculator
Calculate concentration, injection volume and U-100 syringe units for single compounds and blends. Plus TRT, HGH, cost-planning, conversion and reference tools.
Peptide calculator inputs and results
Example values — edit the fields to match your own inputs. Results update automatically.
What is the total volume of your syringe?
Select peptide vial amount
Enter the amount of each peptide in the vial. The target amount below will be based on the selected reference component, and the result will show every component delivered in the same draw.
How much bacteriostatic water are you adding?
Choose target amount
Educational calculation tool only. U-100 insulin syringes are scaled at 100 units per mL. This calculator performs arithmetic from values you enter and does not provide treatment or dosing recommendations. Disclaimer · Methodology
How to calculate peptide concentration and syringe units
Divide the vial amount in mg by the solution volume in mL to get mg/mL. Convert a target amount in mcg to mg by dividing by 1,000, then divide by the concentration to get mL. Multiply mL by 100 for U-100 syringe units.
How does the peptide blend calculator work?
Open the dedicated peptide blend calculator to enter each component separately and see a worked example.
Single mode calculates one peptide. Blend mode uses the amount of each component and a reference component you choose, then shows how much of every component is in the same volume. It calculates an existing blend; it does not recommend mixing compounds or selecting a dose. Follow the worked peptide blend calculation example to see how the reference component determines each amount.
Need a testosterone or HGH calculator?
Use the TRT dosage calculator for testosterone mg to mL with your prescribed weekly total and 1, 2 or 3 equal injections. Use the HGH calculator for IU to mL and syringe units when your vial is labelled in international units. HGH IU and U-100 syringe units are different measurements.
For more context, read the peptide reconstitution and storage guide and calculation methodology. All tools calculate values you enter; they do not choose a dose, diluent or treatment plan.
Calculators & Planning Tools
Start with the core calculators, then use the planning, conversion and body-measurement tools as needed.
Main calculators
TRT Dosage Calculator
Convert your prescribed testosterone dose from mg to mL using vial concentration and 1×, 2× or 3× weekly splits.
Open calculator →HGH · IUHGH IU Calculator
Convert HGH vial IU and reconstitution volume into IU/mL, mL and U-100 syringe units.
Open calculator →Planning tools
Peptide Cost Calculator
Estimate container requirements, total purchase cost, cost per week and leftover from the amount, frequency and duration you enter.
Open calculator →SUPPLY · RUN-OUTPeptide Vial Supply Calculator
Estimate how many full uses your current supply provides, how long it may last and the projected last-use date.
Open calculator →Unit conversions
Syringe Unit Converter
Convert mL to U-100 syringe units and back, with a capacity check.
Open calculator →CONVERTUnit Converter
Convert compatible mass, volume and length units.
Open calculator →Body measurements and energy
BMI Calculator
Calculate adult BMI with metric or imperial inputs.
Open calculator →BMRBMR Calculator
Estimate resting energy using the Mifflin–St Jeor equation.
Open calculator →TDEETDEE Calculator
Explore daily energy estimates using your activity multiplier.
Open calculator →LEAN MASSLean Mass Estimator
Estimate lean and fat mass from weight and body-fat percentage.
Open calculator →Guides & practical answers
First vial, injection questions or blend calculations? Start here.
How to Read a Peptide COA
Decode purity, identity, peptide content and heavy-metals results using real, verifiable laboratory reports.
Read the COA guide →
What does “10 units” actually mean?
Understand mg, mcg, mL and HGH IU with simple examples and visual guides.
Read guide
First vial? Start here.
Mixing, storage and what to check if a vial turns cloudy, gels or crystallises.
Read guide
SubQ vs IM: does it matter?
Compare testosterone effectiveness, blood levels and comfort with each route.
Read guide
TRT: once, twice or three times?
What injection frequency changes, and why the timing of blood tests matters.
Read guide
What’s in each draw of a blend?
A worked example showing each component, concentration and syringe volume.
Read guide