50 mg vial + 3 mL bacteriostatic water: units chart
A 50 mg vial mixed with 3 mL of bacteriostatic water holds 16,666.67 mcg per mL. This is a strong mix: each unit holds 166.67 mcg, so small doses take up only a few units and are harder to measure. More water would spread them out.
Units to draw
1.5units
Draw 1.5 units on a U-100 syringe, just below the 2-unit mark.
Warning: At 1.5 units this dose is hard to measure. Add more water when you mix the vial so the dose fills at least 2 units.
- Dose
- 250 mcg (0.25 mg)
- Volume
- 0.015 mL
- Concentration
- 16,666.67 mcg/mL (16.66667 mg/mL)
- Per unit
- 166.67 mcg (0.16667 mg)
- Full doses in vial
- 200
Show the math
- Convert the vial amount to mcgmg × 1,000 = mcg50 mg × 1,000 = 50,000 mcg
- Convert the dose to mcgmg × 1,000 = mcg0.25 mg × 1,000 = 250 mcg
- Concentrationvial (mcg) ÷ water (mL) = mcg per mL50,000 mcg ÷ 3 mL = 16,666.67 mcg/mL (16.66667 mg/mL)
- Volume to drawdose (mcg) ÷ concentration (mcg/mL) = mL250 mcg ÷ 16,666.67 mcg/mL = 0.015 mL
- Units to drawmL × units per mL = units0.015 mL × 100 units/mL = 1.5 units
- Amount in each unitmcg per mL ÷ units per mL = mcg per unit16,666.67 mcg/mL ÷ 100 units/mL = 166.67 mcg per unit (0.16667 mg)
- Doses in the vialvial (mcg) ÷ dose (mcg), rounded down50,000 mcg ÷ 250 mcg = 200 full doses
50 mg peptide with 3 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 400 mcg to 2,000 mcg are easy to read and fit one 1 mL syringe. The 6 smallest doses are under 2 units.
| Dose | Units (U-100) | Volume (mL) |
|---|---|---|
| 50 mcg | 0.3hard to measure | 0.003 |
| 100 mcg | 0.6hard to measure | 0.006 |
| 150 mcg | 0.9hard to measure | 0.009 |
| 200 mcg | 1.2hard to measure | 0.012 |
| 250 mcg | 1.5hard to measure | 0.015 |
| 300 mcg | 1.8hard to measure | 0.018 |
| 400 mcg | 2.4 | 0.024 |
| 500 mcg | 3 | 0.03 |
| 600 mcg | 3.6 | 0.036 |
| 750 mcg | 4.5 | 0.045 |
| 1,000 mcg1 mg | 6 | 0.06 |
| 1,250 mcg1.25 mg | 7.5 | 0.075 |
| 1,500 mcg1.5 mg | 9 | 0.09 |
| 2,000 mcg2 mg | 12 | 0.12 |
Key numbers for this mix
- Peptide in the vial
- 50,000 mcg
- Concentration
- 16,666.67 mcg/mL
- Each unit on a U-100 syringe
- 166.67 mcg
- Each unit on a U-40 syringe
- 416.67 mcg
- Smallest easy-to-measure dose (2 units)
- 333.33 mcg
- Most that fits in a 1 mL syringe
- 16,666.67 mcg
Worked example: 1,500 mcg
- Convert the vial amount to mcg: 50 mg × 1,000 = 50,000 mcg
- Concentration: 50,000 mcg ÷ 3 mL = 16,666.67 mcg/mL (16.66667 mg/mL)
- Volume to draw: 1,500 mcg ÷ 16,666.67 mcg/mL = 0.09 mL
- Units to draw: 0.09 mL × 100 units/mL = 9 units
- Amount in each unit: 16,666.67 mcg/mL ÷ 100 units/mL = 166.67 mcg per unit (0.16667 mg)
- Doses in the vial: 50,000 mcg ÷ 1,500 mcg = 33 full doses
Draw 9 units on a U-100 syringe, halfway between the 8- and 10-unit marks. The same 1,500 mcg dose is 7.5 units with 2.5 mL of water and 15 units with 5 mL of water, compared with 9 units with 3 mL.
Frequently asked questions
What is the concentration of a 50 mg vial with 3 mL of water?
A 50 mg vial mixed with 3 mL of water holds 16,666.67 mcg per mL. Each unit on a U-100 syringe holds 166.67 mcg.
How many units is 1,500 mcg with a 50 mg vial and 3 mL of water?
It is 9 units on a U-100 syringe, which is 0.09 mL of the mixed liquid.
What is the smallest dose you can measure well with a 50 mg vial and 3 mL of water?
About 333.33 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 50 mg vial and 3 mL of water?
16,666.67 mcg, which fills all 100 units of a 1 mL U-100 syringe. Larger doses need more than one draw or a stronger mix.
How many doses does a 50 mg vial with 3 mL of water give?
Divide 50,000 mcg by your dose and round down: 33 full doses of 1,500 mcg, or 25 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.