mg ↔ units

GHK-Cu mg to units converter

Set your GHK-Cu vial concentration once, then flip in either direction between milligrams and U-100 syringe units.

iPhone · Free to download

Last updated: May 13, 2026

Vial (mg)

Diluent (mL)

Dose (mg)

2.000

units

20.0

0.200

Concentration: 10.00 mg/mL (assumes a U-100 insulin syringe).

GHK-Cu quick reference: mg ↔ units

Bidirectional reference for a 50 mg GHK-Cu vial reconstituted with 5 mL BAC water (concentration 10.00 mg/mL).

Dose (mg)	Dose (mcg)	U-100 units
1	1000	10
2	2000	20
4	4000	40
8	8000	80

Read across in either direction. The mg ↔ units relationship is linear at a fixed concentration — change vial size or BAC water and every row in this table moves.

Worked example

GHK-Cu mg ↔ units, both directions on one vial

Working from one 50 mg GHK-Cu vial mixed with 5 mL of bacteriostatic water → 10.00 mg/mL.
mg → units: 2 mg ÷ 10.00 × 100 = 20 units.
units → mg: 20 units ÷ 100 × 10.00 = 2 mg — round-trip exact, that's how you sanity-check a logged value.
mcg flip: 2 mg = 2000 mcg, useful when the protocol writes the dose below the 1 mg threshold.
Every row here is specific to this vial; reconstitute with a different volume and you start from a different concentration.

Scenarios people actually run into

Three things that come up logging GHK-Cu

Protocol says 2 mg. Syringe says 20 units. Those are the same draw on this vial — and only on this vial.
Someone online says "GHK-Cu dose is 20 units." That number is meaningless without their vial mg and their diluent mL. Ignore the units number and convert from the mg.
Logged a dose in units last week and a dose in mg today. The mg ↔ units flip on this page is how you confirm both entries describe the same actual draw.

Same-category neighbor

GHK-Cu next to GHRP-2

Both sit in the Skin / Healing bucket — here's the mg to-units math side by side on each one's example vial.

	GHK-Cu	GHRP-2
Example dose	2 mg	0.1 mg
Concentration	10.00 mg/mL	2.50 mg/mL
Units to draw	20	4

Want the full breakdown? GHRP-2 reference →

GHK-Cu, also known as copper peptide, is a substance your body already makes, though levels decline as we age. People explore it for its potential roles in skin health, wound healing, and hair growth. Studies report that GHK-Cu can improve skin elasticity and firmness, and it is widely researched for its tissue remodeling abilities. This page breaks down what the research says about GHK-Cu, how people track its use, and the common protocols involved.

How the GHK-Cu mg ↔ units converter works

GHK-Cu doses are written in mg (1, 2, 3). This converter shows U-100 units at your vial concentration so the larger mg-scale doses translate cleanly to syringe units.

The formula in both directions: mg = mL × concentration mg/mL, and units = mL × 100 on a U-100 syringe. With a 10 mg/mL GHK-Cu solution, 2 mg comes out to 20 units, and 20 units comes out to 2 mg. The converter handles the unit flip automatically so you never multiply or divide in your head while holding a syringe.

Concentration is the input that changes the answer most. A 50 mg vial diluted with 1 mL is twice as concentrated as the same vial diluted with 2 mL, which means the same dose draws half as many units. That is the single biggest source of converter confusion: a remembered unit count from an old vial does not transfer to a new vial reconstituted with different water volume.

The conversion from milligrams (mg) to units on an insulin syringe can be tricky, but it’s essential for accurate dosing. Milligrams are a measure of weight, while the units on a syringe are a measure of volume. The Peptide Pilot mg-to-units calculator is designed to make this conversion automatic and error-free. The key to the conversion is knowing your solution’s concentration—how many milligrams of GHK-Cu are in each milliliter of water. This is determined by your reconstitution math. Once you know the concentration, you can figure out the exact volume for any dose you want to track.

Let’s walk through our standard example. You have a 50mg vial of GHK-Cu that you reconstituted with 5mL of bacteriostatic water. This creates a concentration of 10mg per mL (50mg / 5mL). Now, let’s say you want to take a 2mg dose. The calculator solves this proportion for you. If 1mL contains 10mg, then the volume needed for a 2mg dose is 0.2mL. On a standard 1mL insulin syringe, which has 100 units, that 0.2mL volume corresponds to 20 units. The calculator gives you this "20 units" number directly, so you can draw your dose with confidence.

Without a tool, it’s easy to make a mistake, especially if you’re using a different vial size or diluent volume. For example, if you had used only 2.5mL of water with the same 50mg vial, the concentration would be 20mg/mL. In that case, a 2mg dose would only be 10 units (0.1mL). The mg-to-units calculator is invaluable because it forces you to input your specific variables, ensuring the output is tailored to your exact vial. It helps prevent accidental under-dosing or over-dosing, leading to a more consistent and reliable tracking experience for your personal research.

Tracking GHK-Cu unit counts

Tracking your GHK-Cu protocol in Peptide Pilot is designed to be easy and helps you build a detailed log of your usage. The core task is logging each dose. When you go to log a dose, you'll enter the amount in milligrams—for instance, ‘2mg’. You can also select the administration method, which for GHK-Cu is often subcutaneous injection. The app allows you to specify the injection site, and with GHK-Cu, rotating sites is common. You could track locations like ‘left abdomen,’ ‘right thigh,’ etc. This is helpful for avoiding irritation from repeated injections in the same spot. By consistently logging each dose, you create a clear timeline of your protocol, which is invaluable for observing patterns and correlating your usage with any effects you're monitoring over time.

Beyond the basic dose, Peptide Pilot lets you add notes and track metrics that are specific to your goals with GHK-Cu. Many users follow this peptide for its reported skin and hair benefits. In the app, you could create custom tags or use the notes section to record observations like ‘skin feels more hydrated,’ ‘fine lines appear softer,’ or ‘less hair shedding noted.’ Taking regular progress photos and attaching them to your log entries can also be a powerful way to visualize changes that are otherwise slow and subtle. Consistently tracking these subjective and objective markers alongside your dose schedule is the best way to build a personal dataset and get a clearer picture of how GHK-Cu is or isn't working for you. This detailed record-keeping turns vague feelings into structured data.

The app’s built-in calculators are also a key part of the tracking workflow. Before you even take your first dose, you’ll use the reconstitution calculator to ensure you mix your vial correctly. Then, the dose calculator helps you determine the exact volume to draw for each injection, eliminating guesswork. You can use the ‘Vial Duration’ calculator to plan your next peptide order, so you don’t run out unexpectedly. By using these tools, you are not just tracking what you’ve done; you are planning ahead and ensuring accuracy at every step. This proactive approach to tracking helps improve consistency and makes your entire protocol more organized and manageable, letting you focus on observing the outcomes of your self-exploration.

Common GHK-Cu mg ↔ units mistakes

Calculating the dose based on the wrong concentration after reconstitution.

Frequently asked questions about GHK-Cu mg ↔ units

What's the formula behind this GHK-Cu mg ↔ units converter?

Both directions use the same concentration. Going mg → units: (dose mg ÷ concentration mg/mL) × 100. Going units → mg: (units ÷ 100) × concentration. For this GHK-Cu example at 10.00 mg/mL, 2 mg works out to about 20 units, and the same number of units converts back to 2 mg. GHK-Cu vials are typically larger (50 mg) than most peptides, so check your vial size before trusting default math.

Why does my GHK-Cu unit count not match a number I read online?

Almost always because the other source assumed a different vial concentration. A "GHK-Cu dose = 20 units" tip is meaningless without knowing whether the vial was reconstituted with 1, 2, or 3 mL of water. The converter on this page asks for your actual vial mg and diluent mL so the answer reflects your vial, not someone else's. GHK-Cu vials are typically larger (50 mg) than most peptides, so check your vial size before trusting default math.

Does the GHK-Cu converter handle mcg as well as mg?

Yes — 1 mg equals 1,000 mcg, and the converter does the unit flip automatically when you switch the input. This matters for peptides where typical doses sit below 1 mg: a 250 mcg GHK-Cu dose displayed as 0.25 mg is the same number, just easier to read. GHK-Cu vials are typically larger (50 mg) than most peptides, so check your vial size before trusting default math.

When would I convert GHK-Cu units back to mg?

Most often when checking a dose someone else recorded. Logs and protocols sometimes write the dose in units (because it's what shows on the syringe), other times in mg (because it's what the protocol step is named). The reverse direction lets you confirm a logged unit count actually matches the planned mg target before drawing the next dose. GHK-Cu vials are typically larger (50 mg) than most peptides, so check your vial size before trusting default math.

Related on Peptide Pilot

Save your GHK-Cu vial in the app

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