THE RECONSTITUTION CALCULATOR

A little volume.
A clearer picture.

Explore the relationship between vial amount, dilution and draw volume. See your numbers take shape.

01 / 03

Set your amounts.
Choose your syringe.
Watch the scale respond.

Your numbers

01Vial quantity

Custom amount

02Diluent added

Custom amount

03Target amount per draw

Custom amount

Use your own verified values. This tool does not select a diluent or a target amount.

TWO VOLUMES, TWO SYRINGESLive previews

Syringe size means total barrel capacity · 1 mL = 1 ccU-100 insulin: 0.3 mL = 30 units · 0.5 mL = 50 units · 1 mL = 100 units. A 10-unit mark is 0.1 mL within that scale.Tuberculin and standard syringes use mL markings. Select the type and capacity printed on your syringe.

Union Medico size guide ↗KMED common sizes ↗

01Reconstitution syringe

Reconstitution syringe type & size

2 mL

Diluent volume entered — before adding to the vial.

Swipe sideways to inspect the full syringe.

Standard · mL scale · 3 mL capacityIllustrative scale

RESULTING CONCENTRATION5 mg/mL

10 mg ÷ 2 mL = 5,000 mcg/mL

02Draw syringe

Draw syringe type & size

2 units

0.02 mL contains the entered 0.1 mg target.

Swipe sideways to inspect the full syringe.

U-100 insulin · 1 mL capacity · 100 units totalIllustrative scale

The animation shows a mathematical volume, not measurement precision. Display values are rounded; actual syringe markings may not resolve the calculated volume. U-100 units here are volume markings, not peptide activity units.

THE MATH, MADE VISIBLE

Same target. Different volume.

With the vial and target amounts held constant, adding more diluent lowers concentration and increases the calculated draw volume.

Draw volume (mL)

Target amount (mg) × solution volume (mL)
Vial amount (mg)