Free Peptide Calculator

Calculate precise peptide dosages, reconstitution ratios, and mcg to mg conversions

Free Peptide Dosage Calculator

0.3 ml
(30 units)
0.5 ml
(50 units)
1.0 ml
(100 units)
5 mg
10 mg
15 mg
Other
1 ml
2 ml
3 ml
5 ml
Other
mcg
mg
1 mg
2 mg
5 mg
10 mg
Other

Results

To measure 50 mcg set the syringe to the 1.0 unit mark.
Doses per vial
100
Concentration
5.0 mg/ml
Syringe Type
0.3 ml

Get Free Printable Dosage Labels

Vial Size
Kit Size

You never have to recalculate again.

Frequently Asked Questions

How do I use a peptide calculator?

Select your syringe volume, enter your peptide vial amount (mg), add the amount of bacteriostatic water you'll use, and enter your desired dose. The calculator will tell you exactly how many units to draw on your syringe.

How many mcg in a mg?

1 mg = 1,000 mcg. To convert mcg to mg, divide by 1,000. To convert mg to mcg, multiply by 1,000. For example, 250 mcg = 0.25 mg.

How much bacteriostatic water should I add to peptides?

Common amounts are 1ml, 2ml, or 3ml depending on your peptide vial size and desired concentration. A 5mg vial with 2ml of water gives you 2.5mg/ml concentration. More water = lower concentration = higher syringe units per measurement.

What syringe size should I use for peptides?

Most researchers use 0.3 mL, 0.5 mL, or 1.0 mL syringes with 0–100 unit marks for fine measurements.

How do I reconstitute peptides step by step?

1) Let the peptide vial reach room temperature. 2) Draw bacteriostatic water into your syringe. 3) Place the syringe tip against the inner vial wall and introduce solvent slowly; avoid spraying the powder. 4) Gently swirl to dissolve. 5) Use the calculator above to determine your measurement. Full guide here.

Can I use this calculator for any peptide?

Yes! This peptide dosage calculator works for all research peptides regardless of type. The math is the same whether you're working with growth peptides, recovery peptides, or any other research compounds measured in mg/mcg.