🧬 Peptide Calculator
Enter an amino acid sequence (one-letter code) to calculate molecular weight, charge, pI, hydropathy, A280 absorbance, and more.
🧬 What Is a Peptide Calculator?
The Peptide Calculator is a precision tool used to calculate peptide dosages, reconstitution volumes, and concentrations for laboratory or educational purposes.
When working with peptides, accuracy is critical — even a small miscalculation can change the final concentration. This calculator ensures every step, from mixing powder to drawing dosage, is done correctly.
💡 Why You Need a Peptide Calculator
Peptides often come in lyophilized (powdered) form and must be reconstituted with bacteriostatic or sterile water before use.
Manually figuring out how many milligrams (mg) or micrograms (µg) per milliliter (mL) can get confusing.
The Peptide Calculator helps you instantly determine:
✅ How much diluent (water) to add
✅ The final concentration (mg/mL)
✅ The exact dose volume (in mL) for a target dose
This saves time, prevents waste, and avoids dangerous concentration errors in lab setups.
🧮 How the Peptide Calculator Works
The calculator follows a simple 3-step mathematical process based on standard lab dilution principles.
Inputs Required:
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Peptide amount (e.g., 5 mg vial)
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Desired reconstitution volume (mL)
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Target dose (mg or µg per injection)
Step-by-Step Calculation:
1️⃣ Calculate Concentration:
After reconstitution:
Example:
If you add 2 mL of water to a 5 mg vial:
2️⃣ Calculate Dose Volume:
Once you know the concentration, you can find how much liquid equals your target dose:
Example:
If your concentration is 2.5 mg/mL and you need 0.5 mg per injection, then:
3️⃣ Convert Units (if needed):
You can switch between µg and mg using:
So, if your peptide label says 500 µg, that’s 0.5 mg.
⚙️ Key Features of the Peptide Calculator
✔ Instant reconstitution results (mg/mL)
✔ Auto unit conversions (µg ↔ mg ↔ mL)
✔ Custom dosage entry for precise dosing
✔ Error-free lab math — perfect for students & professionals
✔ Responsive, lightweight & mobile-friendly
🧠Example Calculation
Let’s say:
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Peptide vial = 10 mg
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You add 4 mL of sterile water
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You want to inject 1 mg
Then:
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Concentration: 10 ÷ 4 = 2.5 mg/mL
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Injection volume: 1 ÷ 2.5 = 0.4 mL
✅ Final Answer: Inject 0.4 mL for a 1 mg dose.
The calculator handles all this instantly — no manual math needed.
⚠️ Important Disclaimer
This calculator is designed for educational and research purposes only.
It should not be used for human or veterinary medical treatment.
Always follow your institution’s or manufacturer’s lab protocols when handling peptides or biologics.
🔬 Who Can Use the Peptide Calculator
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🧑🔬 Researchers & lab students — to learn dilution and reconstitution principles
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💉 Peptide study groups — for experimental design
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📘 Educational websites — to demonstrate chemistry & biochemistry concepts
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⚗️ Biotech professionals — to standardize prep work
💬 Final Thoughts
Working with peptides demands precision — and the Peptide Calculator makes that precision simple.
It removes the risk of human error in dilution and dosing math, helping labs and learners alike handle peptides confidently.
Whether you’re reconstituting peptides, converting mg to mL, or planning dosage volumes, this tool gives you fast, accurate, and consistent results — every time.
👉 Try the Peptide Calculator now — calculate peptide dosages and reconstitution volumes instantly and safely!