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15 mg vial + 1 mL bacteriostatic water: units chart

A 15 mg vial mixed with 1 mL of bacteriostatic water holds 15,000 mcg per mL. This is a strong mix: each unit holds 150 mcg, so small doses take up only a few units and are harder to measure. More water would spread them out.

Calculate
Vial unit

= 15,000 mcg

mL

Warning: At 1.7 units this dose is hard to measure. Add more water when you mix the vial so the dose fills at least 2 units.

Dose unit

= 250 mcg

Syringe type
Syringe size

Units to draw

1.7units

Draw 1.7 units on a U-100 syringe, just below the 2-unit mark.

Warning: At 1.7 units this dose is hard to measure. Add more water when you mix the vial so the dose fills at least 2 units.

Syringe filled to 1.7 unitsU-100, 1 mL syringe holding up to 100 units. Draw 1.7 units on a U-100 syringe, just below the 2-unit mark.01020304050607080901001.7
Dose
250 mcg (0.25 mg)
Volume
0.017 mL
Concentration
15,000 mcg/mL (15 mg/mL)
Per unit
150 mcg (0.15 mg)
Full doses in vial
60
Show the math
  1. Convert the vial amount to mcgmg × 1,000 = mcg15 mg × 1,000 = 15,000 mcg
  2. Convert the dose to mcgmg × 1,000 = mcg0.25 mg × 1,000 = 250 mcg
  3. Concentrationvial (mcg) ÷ water (mL) = mcg per mL15,000 mcg ÷ 1 mL = 15,000 mcg/mL (15 mg/mL)
  4. Volume to drawdose (mcg) ÷ concentration (mcg/mL) = mL250 mcg ÷ 15,000 mcg/mL = 0.0167 mL
  5. Units to drawmL × units per mL = units0.0167 mL × 100 units/mL = 1.7 units
  6. Amount in each unitmcg per mL ÷ units per mL = mcg per unit15,000 mcg/mL ÷ 100 units/mL = 150 mcg per unit (0.15 mg)
  7. Doses in the vialvial (mcg) ÷ dose (mcg), rounded down15,000 mcg ÷ 250 mcg = 60 full doses

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15 mg peptide with 1 mL bac water: units chart

Units to draw on a 1 mL U-100 syringe for common doses, calculated by this site. With this mix, the chart doses from 300 mcg to 2,000 mcg are easy to read and fit one 1 mL syringe. The 5 smallest doses are under 2 units.

Dose to units: 15 mg vial with 1 mL of water
DoseUnits (U-100)Volume (mL)
50 mcg0.3hard to measure0.0033
100 mcg0.7hard to measure0.0067
150 mcg1hard to measure0.01
200 mcg1.3hard to measure0.0133
250 mcg1.7hard to measure0.0167
300 mcg20.02
400 mcg2.70.0267
500 mcg3.30.0333
600 mcg40.04
750 mcg50.05
1,000 mcg1 mg6.70.0667
1,250 mcg1.25 mg8.30.0833
1,500 mcg1.5 mg100.1
2,000 mcg2 mg13.30.1333

Key numbers for this mix

Peptide in the vial
15,000 mcg
Concentration
15,000 mcg/mL
Each unit on a U-100 syringe
150 mcg
Each unit on a U-40 syringe
375 mcg
Smallest easy-to-measure dose (2 units)
300 mcg
Most that fits in a 1 mL syringe
15,000 mcg

Worked example: 1,500 mcg

  1. Convert the vial amount to mcg: 15 mg × 1,000 = 15,000 mcg
  2. Concentration: 15,000 mcg ÷ 1 mL = 15,000 mcg/mL (15 mg/mL)
  3. Volume to draw: 1,500 mcg ÷ 15,000 mcg/mL = 0.1 mL
  4. Units to draw: 0.1 mL × 100 units/mL = 10 units
  5. Amount in each unit: 15,000 mcg/mL ÷ 100 units/mL = 150 mcg per unit (0.15 mg)
  6. Doses in the vial: 15,000 mcg ÷ 1,500 mcg = 10 full doses

Draw to the 10-unit mark on a U-100 syringe. The same 1,500 mcg dose is 5 units with 0.5 mL of water and 15 units with 1.5 mL of water, compared with 10 units with 1 mL.

Syringe filled to 10 unitsA 1 mL U-100 insulin syringe filled to 10 units for 1,500 mcg.010203040506070809010010

Frequently asked questions

What is the concentration of a 15 mg vial with 1 mL of water?

A 15 mg vial mixed with 1 mL of water holds 15,000 mcg per mL. Each unit on a U-100 syringe holds 150 mcg.

How many units is 1,500 mcg with a 15 mg vial and 1 mL of water?

It is 10 units on a U-100 syringe, which is 0.1 mL of the mixed liquid.

What is the smallest dose you can measure well with a 15 mg vial and 1 mL of water?

About 300 mcg, which fills 2 units on a U-100 syringe. Smaller amounts are hard to read; a vial mixed with more water spreads them over more units.

What is the largest dose that fits a 1 mL syringe with a 15 mg vial and 1 mL of water?

The whole vial fits: 15,000 mcg is 100 units on a U-100 syringe.

How many doses does a 15 mg vial with 1 mL of water give?

Divide 15,000 mcg by your dose and round down: 10 full doses of 1,500 mcg, or 7 of 2,000 mcg.

Nearby vial and water combinations

See all reconstitution charts, or use the peptide calculator for any other vial, water or dose. For the reasoning behind these numbers, read How Much Bacteriostatic Water to Add to a Vial.