CALC / 01U-100 DOSING INSTRUMENT
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Peptide dosage
calculator

A free peptide dose calculator and dosage calculator: set the vial, set the diluent, then select a dose to read concentration, draw volume, and the exact units on a U-100 syringe. Prepared for research protocol work, with the math shown rather than hidden.

Any peptide · any vial · any BAC

Peptide dose calculator

vial · diluent · dose → units
LIVE CALCULATIONvolume / concentration / draw
RP–CALC–01
DRAW AMOUNT5 units0.05 mL · U-100
Draw 5 units, equivalent to 0.05 milliliters.
Concentration5 mg/mL
Selected dose0.25 mg (250 mcg) = 5 units
Enter a desired amount in milligrams or micrograms.
05 Standard doses
06 Suggested doses Select a row
1 unit = 0.01 mL on a U-100 syringe. Values retain decimal precision; visual marks are not silently snapped.
07 cycle summary

Vials required for Cycle

Estimate how much material you need for a full cycle, including cycle length and the number of cycles you plan to run.

Cycle total —
Total required vials —
Total reconstitution —
Total BAC water —

The dose to units math

Three steps convert a dose into a syringe reading, and the calculator above performs them live:

Concentration = vial (mg) ÷ diluent (mL).
Volume = dose (mg) ÷ concentration (mg/mL).
Units = volume (mL) × 100, because a U-100 syringe reads 100 units per mL.

A 10 mg vial reconstituted with 2 mL of bacteriostatic water is 5 mg/mL. A 0.5 mg reference dose therefore draws 0.1 mL — 10 units. Change the diluent to 5 mL and the concentration drops to 2 mg/mL, so the same 0.5 mg dose now draws 25 units. The peptide delivered is identical; only the volume changes.

Worked examples

  • 10 mg vial, 2 mL BAC, 0.25 mg dose — 5 mg/mL → 0.05 mL → 5 units.
  • 5 mg vial, 2 mL BAC, 0.25 mg dose — 2.5 mg/mL → 0.1 mL → 10 units.
  • 50 mg vial, 3 mL BAC, 2 mg dose — 16.67 mg/mL → 0.12 mL → 12 units.

Looking for the reference chart instead?

The peptide dosage chart lists the reference dose, concentration, and U-100 units for every compound in the archive in one table. Use this calculator when you want to change the vial, diluent, or dose yourself; use the chart when you want the standard reference row for a specific peptide.

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