Peptide reconstitution calculator
Enter the milligrams in your vial, the water you added and the amount you want to measure: the calculator gives the concentration and how many units to draw on a U-100 insulin syringe. It only converts your numbers; it doesn't recommend amounts.
Enter all three numbers to see the result.
KAILAB vials
Tap a product to fill in the vial and the water from its page.
How is it calculated?
Units = amount (mcg) ÷ concentration (mcg per mL) × 100. A U-100 insulin syringe holds 100 units per mL, so each unit is 0.01 mL.
For example, a 10 mg vial with 2 mL of water comes to 5 mg per mL (5,000 mcg per mL). To measure 500 mcg you draw 0.1 mL, which is 10 units on a U-100 syringe.
Frequently asked questions
Units or milliliters?
Insulin syringes are marked in units. On a U-100 syringe, 100 units are 1 mL: 10 units are 0.1 mL.
Which syringe should I use?
One with enough marks for your measure: 0.5 mL (50 units) for measures up to 50 units, or 1 mL (100). The smaller the syringe, the easier each mark is to read.
Why do the units change with the amount of water?
More water dilutes the peptide: the same amount takes up more volume and draws more units. That's why each product page says how much water to use.