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5 mg vial + 1 mL bacteriostatic water: units chart

A 5 mg vial mixed with 1 mL of bacteriostatic water holds 5,000 mcg per mL. This is a middle-strength mix: each unit holds 50 mcg, so most doses in the table land between 2 and 100 units on a 1 mL syringe.

Calculate
Vial unit

= 5,000 mcg

mL
Dose unit

= 250 mcg

Syringe type
Syringe size

Units to draw

5units

Draw 5 units on a U-100 syringe, halfway between the 4- and 6-unit marks.

Syringe filled to 5 unitsU-100, 1 mL syringe holding up to 100 units. Draw 5 units on a U-100 syringe, halfway between the 4- and 6-unit marks.01020304050607080901005
Dose
250 mcg (0.25 mg)
Volume
0.05 mL
Concentration
5,000 mcg/mL (5 mg/mL)
Per unit
50 mcg (0.05 mg)
Full doses in vial
20
Show the math
  1. Convert the vial amount to mcgmg × 1,000 = mcg5 mg × 1,000 = 5,000 mcg
  2. Convert the dose to mcgmg × 1,000 = mcg0.25 mg × 1,000 = 250 mcg
  3. Concentrationvial (mcg) ÷ water (mL) = mcg per mL5,000 mcg ÷ 1 mL = 5,000 mcg/mL (5 mg/mL)
  4. Volume to drawdose (mcg) ÷ concentration (mcg/mL) = mL250 mcg ÷ 5,000 mcg/mL = 0.05 mL
  5. Units to drawmL × units per mL = units0.05 mL × 100 units/mL = 5 units
  6. Amount in each unitmcg per mL ÷ units per mL = mcg per unit5,000 mcg/mL ÷ 100 units/mL = 50 mcg per unit (0.05 mg)
  7. Doses in the vialvial (mcg) ÷ dose (mcg), rounded down5,000 mcg ÷ 250 mcg = 20 full doses

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5 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 100 mcg to 2,000 mcg are easy to read and fit one 1 mL syringe. The smallest dose is under 2 units.

Dose to units: 5 mg vial with 1 mL of water
DoseUnits (U-100)Volume (mL)
50 mcg1hard to measure0.01
100 mcg20.02
150 mcg30.03
200 mcg40.04
250 mcg50.05
300 mcg60.06
400 mcg80.08
500 mcg100.1
600 mcg120.12
750 mcg150.15
1,000 mcg1 mg200.2
1,250 mcg1.25 mg250.25
1,500 mcg1.5 mg300.3
2,000 mcg2 mg400.4

Key numbers for this mix

Peptide in the vial
5,000 mcg
Concentration
5,000 mcg/mL
Each unit on a U-100 syringe
50 mcg
Each unit on a U-40 syringe
125 mcg
Smallest easy-to-measure dose (2 units)
100 mcg
Most that fits in a 1 mL syringe
5,000 mcg

Worked example: 500 mcg

  1. Convert the vial amount to mcg: 5 mg × 1,000 = 5,000 mcg
  2. Concentration: 5,000 mcg ÷ 1 mL = 5,000 mcg/mL (5 mg/mL)
  3. Volume to draw: 500 mcg ÷ 5,000 mcg/mL = 0.1 mL
  4. Units to draw: 0.1 mL × 100 units/mL = 10 units
  5. Amount in each unit: 5,000 mcg/mL ÷ 100 units/mL = 50 mcg per unit (0.05 mg)
  6. Doses in the vial: 5,000 mcg ÷ 500 mcg = 10 full doses

Draw to the 10-unit mark on a U-100 syringe. The same 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 500 mcg.010203040506070809010010

Frequently asked questions

What is the concentration of a 5 mg vial with 1 mL of water?

A 5 mg vial mixed with 1 mL of water holds 5,000 mcg per mL. Each unit on a U-100 syringe holds 50 mcg.

How many units is 500 mcg with a 5 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 5 mg vial and 1 mL of water?

About 100 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 5 mg vial and 1 mL of water?

The whole vial fits: 5,000 mcg is 100 units on a U-100 syringe.

How many doses does a 5 mg vial with 1 mL of water give?

Divide 5,000 mcg by your dose and round down: 10 full doses of 500 mcg, or 8 of 600 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 Peptide Reconstitution Formula, Explained Step by Step.