Reverse peptides calculator
Find the BAC water to add so a fixed syringe draw delivers your dose, the reverse of solving the draw from the water used.
Required BAC water
20.00mL
Reconstitute your peptide vial using 20.00 mL of BAC water.
Where 20.00 mL = 2,000 units of BAC water.
- Vial contents
- 5 mg
- Dose per draw
- 250 mcg
- Draw per dose
- 100 units
- Volume per draw
- 1.00 mL
- Doses in the vial
- 20
The result assumes a U-100 insulin syringe, where 100 units is 1 mL. Check the markings on your own syringe before drawing.
What the reverse calculator does
The benefit of this calculator is to find the correct amount of BAC water to reconstitute with for a pre-determined syringe draw amount, as opposed to a typical peptide calculator which instead tells you how much to draw given a specified amount of BAC water used.
How the volume is worked out
- Doses in the vial = vial contents (mg) × 1000 ÷ dose (mcg). A 5 mg vial at 250 mcg per dose holds 20 doses.
- Each dose is drawn as the units you chose. On a U-100 insulin syringe 100 units is 1 mL, so a 100-unit draw is 1 mL per dose.
- BAC water to add = doses in the vial × mL per dose. In the example, 20 doses × 1 mL = 20 mL.
When you already know how much water you will add and need the draw instead, use the main calculator.
