BPC-157 Dosage Calculator
This free BPC-157 dosage calculator turns a target amount in micrograms into the exact volume and syringe units to measure. Enter your vial size, the amount of bacteriostatic water added, and the target amount. The calculator does the conversion math so you don’t have to work it out by hand.
The tool is built for researchers, students, and lab staff who need fast, reliable reconstitution math. It removes the most common source of error in peptide work, which is converting between milligrams, micrograms, millilitres, and syringe units. All results are for research and educational purposes only.
1 mL = 100 units on a U-100 syringe · 1 mg = 1000 mcg. For research and educational purposes only. Not medical advice.
BPC-157 dosage chart
The chart below shows a common setup: a 5 mg vial of BPC-157 mixed with 2 mL of bacteriostatic water. This gives a concentration of 2.5 mg/mL (2,500 mcg per mL), so each unit on a U-100 syringe holds 25 mcg.
| Target amount | Volume (mL) | U-100 syringe units |
|---|---|---|
| 250 mcg | 0.10 mL | 10 units |
| 500 mcg | 0.20 mL | 20 units |
The numbers change if you use a different amount of water. With 1 mL of water, the concentration doubles to 5 mg/mL, so 250 mcg becomes 5 units (0.05 mL) and 500 mcg becomes 10 units (0.10 mL). With 3 mL of water, the solution is more dilute at about 1.67 mg/mL, so 250 mcg becomes 15 units (0.15 mL) and 500 mcg becomes 30 units (0.30 mL). More water means more units for the same amount of peptide. Less water means fewer units.
How to use this calculator
Step 1: Enter the vial size:
Find the total amount of peptide in the vial, printed on the label in milligrams (mg). Common BPC-157 vial sizes are 5 mg and 10 mg. Enter this number exactly as shown. The calculator uses it as the starting point for every other value, so a wrong vial size will throw off all the results.
Step 2: Enter the bacteriostatic water volume:
Enter how many millilitres (mL) of bacteriostatic water were added to the vial. This is called reconstitution, and it sets the concentration of the solution. The water amount itself is flexible: 1 mL, 2 mL, and 3 mL are all common. What matters is entering the amount that was actually used.
Step 3: Enter the target amount:
Type in the amount you want to measure, in micrograms (mcg). If your reference material lists the amount in milligrams, multiply by 1,000 to convert it (for example, 0.25 mg equals 250 mcg). Most calculators, including this one, also accept milligrams if you switch the unit selector.
Step 4: Read the results:
The calculator shows the concentration of your solution, the volume to draw in millilitres, and the matching number of units on a U-100 insulin syringe. It may also show how many measured amounts the vial contains in total. Before relying on any result, check it against the chart above or a second calculation. This takes a few seconds and catches input errors.
Typical BPC-157 amounts used in research
BPC-157 is not approved for human use by the FDA or any major regulatory agency, and controlled human clinical data is very limited. Most published research is preclinical, mainly rodent studies, where amounts are measured by body weight (usually in micrograms per kilogram) rather than as fixed amounts. Those figures cannot simply be converted into human amounts.
In protocol summaries and secondary literature, the amounts cited most often are 250 to 500 mcg, given once or twice daily. We include these figures only so the calculator's examples match what researchers commonly see. They are not recommendations, and their appearance here does not mean they are safe or effective. BPC-157 is also on the World Anti-Doping Agency (WADA) prohibited list. Treat all figures on this page as reference material for research and education only.
Frequently asked questions
How many units is 250 mcg of BPC-157?
It depends on the concentration of your solution. With a 5 mg vial mixed with 2 mL of bacteriostatic water (2.5 mg/mL), 250 mcg equals 10 units on a U-100 syringe, or 0.10 mL. With 1 mL of water it equals 5 units, and with 3 mL of water it equals 15 units. Use the calculator above for any other combination.
How long does a 5 mg vial of BPC-157 last?
A 5 mg vial contains 5,000 mcg. At 250 mcg per measured amount, that is 20 amounts. At 500 mcg, it is 10 amounts. So at 250 mcg once daily the vial covers 20 days, and at 250 mcg twice daily it covers 10 days. Keep in mind that reconstituted peptides also have a limited shelf life, which may run out before the vial is used up.
Should BPC-157 be taken once or twice a day?
We can't advise on how BPC-157 should be used, and nothing on this site is medical guidance. For reference only, protocol summaries describe both once-daily and twice-daily schedules, and some split a daily total into two smaller amounts. No regulatory body has established an approved schedule. Any decision about human use belongs with a qualified medical professional.
How do I store reconstituted BPC-157?
General peptide handling guidance says to keep reconstituted solutions refrigerated at about 2 to 8°C (36 to 46°F), away from light, and to avoid repeated temperature changes. Many sources suggest using a reconstituted vial within about 3 to 4 weeks, in line with the typical in-use period for bacteriostatic water. Unmixed (lyophilized) powder is usually stored cold or frozen for longer-term stability. Always follow the storage information supplied with your specific material.
All content and calculations on this page are for research and educational purposes only. Nothing here is medical advice, a treatment recommendation, or an endorsement of any product or supplier. BPC-157 is not approved for human use. Always double-check calculations independently, and consult a qualified healthcare professional for any question about your health.