Online Peptide Calculator LOGOOnline Peptide Calculator

Peptide Cycle Calculator & Planner

Your ultimate tool for peptide cycle planning. Calculate vials needed by duration, or find out how long your supply will last.

Plan Your Cycle

Your Peptide Vial

What's the total amount of peptide in it?

Your Desired Dose

How much peptide do you want per injection?

Injection Frequency

How often will you inject?

Planning Mode

Are you planning based on time, or the supply you have?

Cycle Duration

How long do you plan to run this cycle?

Run for

Most common cycles run for 8 to 12 weeks.

Your Cycle Projection

Total Injections:

56

Total Peptide Needed:

2800 mcg(2.8 mg)

Vials Required:

You will only need 1 vial for this cycle.

Supply Duration (per vial):

Each 5 mg vial will last for 100 days (approx. 3.3 months).

Answers to Your Questions

Our basic calculator finds the syringe units for a single injection. This Cycle Planner is a powerful strategic tool. It has two modes:
  • Plan by Duration: Tell us how long your cycle is, and we'll calculate the total vials required.
  • Plan by Supply: Tell us how many vials you have, and we'll project the maximum cycle duration your supply will last.
It's designed to help you see the bigger picture for your research.
When using the "Plan by Duration" mode, the calculator first determines your total peptide need for the entire cycle. It then divides this by the amount in a single vial. Since you can't use a fraction of a vial, the result is always rounded up to the next whole number to ensure you have enough.
When using the "Plan by Supply" mode, the tool first calculates the total amount of peptide in all your vials. It then divides this by your planned dose per injection to find the total injections possible. Finally, it uses your injection frequency to project the total number of days your supply will last.
Yes. This planner is fully equipped to handle calculations in both mg/mcg and IU. If your vial amount and desired dose use different unit systems, a "Conversion Rate" tool will automatically appear to help you bridge the gap, just like on our specialized IU calculator.
You are on our Peptide Cycle Planner. For other specific tasks:
Absolutely. Your privacy is our top priority. All calculations are performed directly within your web browser. For your convenience, we may use your browser's local storage to save your inputs, so your data is waiting for you if you revisit.

Crucially, this data is stored only on your own device. We do not see, record, transmit, or have any access to your calculations. Your session is completely private and anonymous.

For a detailed explanation, please review our full Privacy Policy.