Tools
Peptide calculators and planning tools
Check reconstitution, unit conversions, vial coverage, syringe marks, dilution volume, and dates in one focused workspace. IU conversions always use the exact potency from your product label or COA.
A clear check before you draw
Start with the label or COA, then use one calculator at a time. These tools show arithmetic and syringe-volume assumptions; they do not recommend a peptide, dose, route, or treatment plan.
Start here
Reconstitution calculator
Find concentration and draw volume from vial amount, liquid volume, and target dose.
Concentration
2500 mcg/ml
Concentration (IU)
Enter potency
Draw amount
0.100 ml
U-100 syringe
10.0 units
Translate units
Dose converter
Convert a mass dose into mcg, mg, draw volume, and U-100 marks. IU needs the product potency above.
Dose (mcg)
250.0
Dose (mg)
0.2500
Dose (IU)
Enter potency
Draw (ml)
0.100
U-100 units
10.0
Plan inventory
Vial longevity calculator
Estimate theoretical coverage from vial amount, dose, and frequency. Real-world loss and storage limits are not included.
Doses per vial
20.0
Days covered
20.0
Weeks covered
2.9
Read the barrel
Syringe units calculator
Convert a concentration and dose into millilitres and U-100 insulin-syringe marks.
Assumption: U-100 means 100 syringe units per 1 ml. Confirm your syringe scale before use.
Draw volume
0.100 ml
U-100 syringe units
10.0
Set the concentration
Dilution calculator
Estimate liquid volume from a vial amount and a target concentration.
Assumption: the target concentration uses the same mass basis as the converted vial amount; this does not select a diluent or confirm compatibility.
Estimated liquid volume
2.000 ml
Map the dates
Dose schedule calculator
Create a date list from a start date, frequency, and number of doses. It does not suggest a frequency.
Dates are shown in your browser's local date format. Twice-daily entries share a date because no times were supplied.
Enter a start date and dose count to preview dates.
How the math works
Simple inputs, visible assumptions
Concentration is amount divided by liquid volume. Draw volume is dose divided by concentration. U-100 marks are millilitres multiplied by 100. Longevity is theoretical doses divided by frequency, before waste or storage limits.
Fictional worked example
A fictional 5 mg vial mixed into 2 ml gives 2,500 mcg/ml. A fictional 250 mcg entry is 0.1 ml, or 10 U-100 marks. Replace these values with your own label and verified inputs.
Accuracy and safety note
This page performs unit arithmetic only. IU potency, product concentration, syringe scale, sterility, storage, compatibility, and clinical decisions must be checked against the product label/COA and qualified professional guidance. It does not provide medical dosage recommendations.
Questions people ask
Calculator FAQ
Why is IU potency required?
IU is a biological activity unit, not a universal mass conversion. The correct IU-per-mg relationship depends on the specific product label or COA.
What does U-100 mean?
U-100 means 100 marked syringe units equal 1 ml. This page uses that convention for volume-to-mark calculations; confirm the scale on your syringe.
Does the longevity estimate include waste?
No. It is a theoretical arithmetic estimate and does not include dead space, spills, missed doses, storage limits, or product stability.
Can these tools recommend a dose?
No. They only calculate relationships between values you provide and intentionally avoid medical dosage recommendations.
Why does my result show “Enter potency”?
One of the selected inputs or outputs uses IU. Enter a positive, product-specific IU-per-mg value from the label or COA before relying on that conversion.