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The Peptide Effect

Tools

Printable Syringe Units Chart

Quick-reference chart for insulin syringe units to mL conversion. Select your syringe type and optionally add mg/mcg columns based on your peptide concentration. Print or copy to clipboard.

Syringe type

U-100 Syringe — Units to mL Reference Chart

UnitsmL
50.050
100.10
150.15
200.20
250.25
300.30
350.35
400.40
450.45
500.50
550.55
600.60
650.65
700.70
750.75
800.80
850.85
900.90
950.95
1001.00

Assumptions

  • U-100: 100 units = 1 mL
  • Chart shows every 5 units from 5 to 100
  • All values are exact arithmetic (no rounding applied to the conversion)

How This Chart Works

Flow diagram showing how the printable units chart works
Chart generation flow — from parameters to printable reference

The chart lists every unit marking on your selected syringe type with the corresponding volume in mL. The conversion is purely mathematical: mL = units ÷ unitsPerMl. If you provide a concentration, the chart also calculates the peptide amount: mg = mL × concentration.

Assumptions & Limitations

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Frequently Asked Questions

Why would I print a units chart?
A printed reference chart taped near your preparation area eliminates the need to calculate conversions each time. Many researchers and practitioners keep a chart for each peptide they regularly use, with the mg/mcg column pre-filled for their specific concentration.
What is the difference between U-100, U-50, and U-40?
The number indicates how many units equal 1 mL. U-100 (100 units/mL) is the most common for peptides and insulin. U-50 (50 units/mL) and U-40 (40 units/mL) have larger unit markings, which can make small volumes easier to measure. The chart adjusts automatically for each type.
How do I add mg/mcg to the chart?
Check the "Include mg/mcg columns" box and enter your solution concentration in mg/mL. The chart will calculate the peptide amount for each unit marking. Your concentration depends on how you reconstituted the peptide (e.g., 5 mg vial + 2 mL BAC water = 2.5 mg/mL).
Can I copy this chart into a spreadsheet?
Yes. The "Copy table" button copies the chart in tab-separated format, which pastes directly into Excel, Google Sheets, or any spreadsheet application.

Educational Use Only

This reference chart is provided for educational and convenience purposes. Always verify conversions independently before preparing any injection. Consult a healthcare provider for dosing guidance.

Last reviewed: February 2026