Tools

Peptide Dosage Calculator

Evidence-based dosing ranges for common research peptides. Select a peptide, choose your dose level, and see per-dose amounts, weekly totals, and vial estimates.

Select peptide

Route of administration

SubQOral

Dose level

Range: 200–500 mcg per dose

Per dose

350

mcg

Frequency

14x

per week

Daily average

700

mcg/day

Weekly total

4,900

mcg/week

Cycle duration

days

Cycle total

29,400

mcg

Vials needed

× 5 mg

Each 5 mg vial lasts ~7 days at this dosage

Show the math›

Dose range (SubQ): 200–500 mcg

Standard → (min + max) / 2 = 350 mcg

Weekly: 350 mcg × 14 doses = 4,900 mcg

Daily avg: 4,900 ÷ 7 = 700 mcg

Cycle: 4,900 × (42 / 7) = 29,400 mcg

Vials: ceil(29,400 ÷ 5,000) = 6

Assumptions

Dose ranges reflect commonly reported research protocols
Frequency and cycle length are typical starting points
Vial calculation assumes full usable volume (no overfill credit)
Actual protocols vary — consult a healthcare provider

How This Calculator Works

Flow diagram showing how the dosage calculator works — Dosage calculation flow — from inputs to scheduled doses

Each peptide preset contains a dose range (minimum to maximum mcg per administration) sourced from published research protocols. The dose level selector maps to the low end, midpoint, or high end of that range. Weekly and cycle totals are simple multiplication — no hidden adjustments.

For weight-based peptides, the calculator scales the base dose linearly from a 75 kg reference. All formulas are shown in the “Show the math” section so you can verify every number.

Assumptions & Limitations

Dose ranges reflect commonly cited research protocols; they are not medical recommendations.
Cycle lengths are typical starting durations — actual protocols may be shorter or longer.
Vial estimates assume full usable volume with no overfill credit or waste.
Weight-based scaling is linear and may not match all clinical titration schedules.
Individual response, tolerance, and health status affect appropriate dosing — consult a qualified healthcare provider.

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Frequently Asked Questions

How are the dosage ranges determined?

Dose ranges are compiled from commonly reported research protocols and published literature. They represent the spectrum from conservative to aggressive dosing seen across studies and clinical reports. These are not prescriptions — always follow your healthcare provider’s instructions.

What does the dose level (Conservative / Standard / Aggressive) mean?

Conservative uses the low end of the reported range, Standard uses the midpoint, and Aggressive uses the high end. Most protocols start at conservative and titrate upward based on response and tolerability.

Why does body weight only appear for some peptides?

Weight-based dosing is shown only for peptides where research protocols commonly adjust dose by body mass (e.g., CJC-1295, Ipamorelin). Peptides with fixed-dose protocols (e.g., semaglutide, tirzepatide) use the same dose regardless of weight.

How accurate is the vials needed estimate?

The calculation assumes you use the full labeled content of each vial with no waste. In practice, small amounts are lost during reconstitution and drawing. Consider ordering one extra vial as a buffer for longer cycles.

Educational Use Only

This calculator is provided for educational and informational purposes. It is not medical advice. Always follow your healthcare provider's dosing instructions. The Peptide Effect does not sell, prescribe, or endorse any specific peptide product.

Last reviewed: February 2026