Research tools

Peptide calculator

Select your amounts to calculate concentration, sample volume and U-100 units. The results update instantly, right in your browser.

Selected peptide amount

Or enter a custom amount (mg)

Total peptide in the vial

Example GLP-3 vial labeled 20 mg — **Example: GLP-3, 20 mg**Use the total amount labeled on your vial.

Or enter a custom vial amount (mg)

Water volume added

Example BAC water five pack with 3 mL in each vial — **Example: BAC water, 5 pack**Each vial contains 3 mL. Enter only the volume you add, not the full pack volume.

Or enter a custom water volume (mL)

Your calculation

Results

Selected amountSelect an amount

Equivalent U-100 volumeSelect all three values -

U-100 scale · 100 units = 1 mL

Complete amounts in the vial: Select all three values
Concentration: Select all three values

For laboratory research calculations only. This tool converts the values you enter; it does not select a dose or provide instructions for use in humans or animals.

How the math works

ConcentrationVial amount (mg) ÷ water volume (mL).

Sample volumeSelected amount (mg) ÷ concentration (mg/mL).

U-100 unitsSample volume (mL) × 100. This conversion applies only to U-100; compound IU values are different.

1 mg = 1,000 mcg. Complete amounts are rounded down and assume no transfer loss. This calculation assumes the entered water volume is the final solution volume; it does not account for powder displacement or verify preparation properties.