Peptide Reconstitution Chart (Printable)

Every common vial size and water volume, worked out once: the concentration you get, and how many U-100 syringe units a given amount takes. Print it or save it as a PDF.

Or use the calculator →

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Concentration by vial size and water volume

Concentration of the mixed vial, in mcg per mL.

Peptide concentration in mcg/mL for each vial size and bacteriostatic water volume
Vial	1 mL water	2 mL water	3 mL water	5 mL water
2 mg	2,000	1,000	667	400
5 mg	5,000	2,500	1,667	1,000
10 mg	10,000	5,000	3,333	2,000
15 mg	15,000	7,500	5,000	3,000
20 mg	20,000	10,000	6,667	4,000
30 mg	30,000	15,000	10,000	6,000
50 mg	50,000	25,000	16,667	10,000

Syringe units by amount

Units on a U-100 insulin syringe (100 units = 1 mL). Values over 100 units are more than 1 mL and shown in grey.

2 mg vial

U-100 syringe units for a 2 mg vial by water volume and amount
Water	mcg/mL	100 mcg	250 mcg	500 mcg	1 mg	2 mg	2.5 mg	5 mg
1 mL	2,000	5	12.5	25	50	100	125*	250*
2 mL	1,000	10	25	50	100	200*	250*	500*
3 mL	667	15	37.5	75	150*	300*	375*	750*
5 mL	400	25	62.5	125*	250*	500*	625*	1,250*

5 mg vial

U-100 syringe units for a 5 mg vial by water volume and amount
Water	mcg/mL	100 mcg	250 mcg	500 mcg	1 mg	2 mg	2.5 mg	5 mg
1 mL	5,000	2	5	10	20	40	50	100
2 mL	2,500	4	10	20	40	80	100	200*
3 mL	1,667	6	15	30	60	120*	150*	300*
5 mL	1,000	10	25	50	100	200*	250*	500*

10 mg vial

U-100 syringe units for a 10 mg vial by water volume and amount
Water	mcg/mL	100 mcg	250 mcg	500 mcg	1 mg	2 mg	2.5 mg	5 mg
1 mL	10,000	1	2.5	5	10	20	25	50
2 mL	5,000	2	5	10	20	40	50	100
3 mL	3,333	3	7.5	15	30	60	75	150*
5 mL	2,000	5	12.5	25	50	100	125*	250*

15 mg vial

U-100 syringe units for a 15 mg vial by water volume and amount
Water	mcg/mL	100 mcg	250 mcg	500 mcg	1 mg	2 mg	2.5 mg	5 mg
1 mL	15,000	0.67	1.7	3.3	6.7	13.3	16.7	33.3
2 mL	7,500	1.3	3.3	6.7	13.3	26.7	33.3	66.7
3 mL	5,000	2	5	10	20	40	50	100
5 mL	3,000	3.3	8.3	16.7	33.3	66.7	83.3	166.7*

20 mg vial

U-100 syringe units for a 20 mg vial by water volume and amount
Water	mcg/mL	100 mcg	250 mcg	500 mcg	1 mg	2 mg	2.5 mg	5 mg
1 mL	20,000	0.5	1.3	2.5	5	10	12.5	25
2 mL	10,000	1	2.5	5	10	20	25	50
3 mL	6,667	1.5	3.8	7.5	15	30	37.5	75
5 mL	4,000	2.5	6.3	12.5	25	50	62.5	125*

30 mg vial

U-100 syringe units for a 30 mg vial by water volume and amount
Water	mcg/mL	100 mcg	250 mcg	500 mcg	1 mg	2 mg	2.5 mg	5 mg
1 mL	30,000	0.33	0.83	1.7	3.3	6.7	8.3	16.7
2 mL	15,000	0.67	1.7	3.3	6.7	13.3	16.7	33.3
3 mL	10,000	1	2.5	5	10	20	25	50
5 mL	6,000	1.7	4.2	8.3	16.7	33.3	41.7	83.3

50 mg vial

U-100 syringe units for a 50 mg vial by water volume and amount
Water	mcg/mL	100 mcg	250 mcg	500 mcg	1 mg	2 mg	2.5 mg	5 mg
1 mL	50,000	0.2	0.5	1	2	4	5	10
2 mL	25,000	0.4	1	2	4	8	10	20
3 mL	16,667	0.6	1.5	3	6	12	15	30
5 mL	10,000	1	2.5	5	10	20	25	50

* More than 1 mL (over 100 units on a U-100 syringe).

How to read this chart

Find your vial size and the amount of bacteriostatic water you added. The overview table gives the concentration of the mixed vial in micrograms per millilitre.

The per-vial tables then turn that concentration into units on a U-100 insulin syringe for seven common amounts, from 100 mcg to 5 mg. Pick the row for your water volume and the column for the amount.

Numbers are rounded for reading. A value over 100 units means the volume is more than 1 mL. For any combination not listed, use the calculator: it runs the same formula with any numbers.

concentration (mcg/mL) = vial (mg) × 1,000 ÷ water (mL)

volume (mL) = amount (mcg) ÷ concentration (mcg/mL)

units (U-100) = volume (mL) × 100

Example: a 10 mg vial with 2 mL of water is 10,000 mcg ÷ 2 mL = 5,000 mcg/mL. An amount of 250 mcg is 250 ÷ 5,000 = 0.05 mL, which is 5 units on a U-100 syringe.

⚠︎This chart is arithmetic for education. It does not say what amount to use, how often, or whether any compound is right for you — those are decisions for you and a licensed clinician. Check your vial label: the amount printed there is what the math depends on.

Questions

Start with the overview: the row for your vial size and the column for the millilitres of bacteriostatic water you added give the concentration in mcg per mL. Then go to the table for your vial size, take the row for your water volume, and read across to the amount in mcg or mg. The cell is the number of units on a U-100 insulin syringe.

The peptide amount in the vial stays the same, so more water spreads it thinner. A lower concentration means the same amount takes up more volume, and on a U-100 syringe more volume reads as more units. With a 10 mg vial, 1 mg is 10 units with 1 mL of water and 50 units with 5 mL.

On a U-100 syringe, 100 units equals 1 mL, so anything above 100 is more than 1 mL of liquid. Less water in the vial makes the mix more concentrated and brings the number down; the chart shows how much for each water volume.

No. The amounts across the top are round numbers chosen to cover a wide range, not recommendations. The chart only converts an amount you already have into syringe units.

Keep every dose in one place.

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