mg ↔ units

Tesamorelin mg to units converter

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

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Last updated: May 13, 2026

Vial (mg)

Diluent (mL)

Dose (mg)

1.000

units

40.0

0.400

Concentration: 2.50 mg/mL (assumes a U-100 insulin syringe).

Tesamorelin quick reference: mg ↔ units

Bidirectional reference for a 5 mg Tesamorelin vial reconstituted with 2 mL BAC water (concentration 2.50 mg/mL).

Dose (mg)	Dose (mcg)	U-100 units
0.5	500	20
1	1000	40
2	2000	80
4	4000	160

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

Tesamorelin mg ↔ units, both directions on one vial

Working from one 5 mg Tesamorelin vial mixed with 2 mL of bacteriostatic water → 2.50 mg/mL.
mg → units: 1 mg ÷ 2.50 × 100 = 40 units.
units → mg: 40 units ÷ 100 × 2.50 = 1 mg — round-trip exact, that's how you sanity-check a logged value.
mcg flip: 1 mg = 1000 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 Tesamorelin

Protocol says 1 mg. Syringe says 40 units. Those are the same draw on this vial — and only on this vial.
Someone online says "Tesamorelin 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

Tesamorelin next to CJC-1295

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

	Tesamorelin	CJC-1295
Example dose	1 mg	0.1 mg
Concentration	2.50 mg/mL	1.00 mg/mL
Units to draw	40	10

Want the full breakdown? CJC-1295 reference →

Tesamorelin is a daily injection people use specifically to reduce stubborn deep belly fat (visceral adipose tissue). It's an analog of growth hormone-releasing hormone (GHRH) that prompts the pituitary to release more of the body's own GH. In FDA trials for HIV-related lipodystrophy, daily 2 mg injections reduced visceral fat by about 15–18% over 26 weeks. This page covers reconstitution math and daily dose logging.

How the Tesamorelin mg ↔ units converter works

Tesamorelin protocols are titled in mg (1 mg or 2 mg), unlike most peptides in its family. This converter does the mg-to-units math so the syringe count always matches the protocol step.

The formula in both directions: mg = mL × concentration mg/mL, and units = mL × 100 on a U-100 syringe. With a 2.5 mg/mL Tesamorelin solution, 1 mg comes out to 40 units, and 40 units comes out to 1 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 5 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.

Tracking Tesamorelin unit counts

For a peptide administered daily at a relatively high volume, such as a 1 mg dose of Tesamorelin that may occupy 40 units, the single most valuable data point to log is the injection site location. Consistently administering a larger volume into the exact same subcutaneous tissue area day after day can lead to palpable lipohypertrophy, a localized hardening or swelling of adipose tissue that can impede absorption. Documenting and observing a systematic rotation schedule for administration sites (e.g., quadrant of the abdomen, left vs. right glute) is a key practice for anyone planning a long-term protocol, as it allows for the monitoring of tissue health and adherence.

Effective tracking of a tesamorelin protocol involves documenting more than just dose and time. Given its specific mechanism as a GHRH analog, logs can be enhanced by recording variables that provide context for its activity. This includes noting the timing of administration relative to food intake, as ghrelin, lipids, and glucose can influence the downstream GH-IGF-1 axis. Additionally, since local injection site reactions such as erythema or induration are sometimes noted in studies of GHRH analogs, it can be valuable to monitor and document the condition of the administration site. Tracking these details provides a more complete data set for later analysis of observed trends.

Common Tesamorelin mg ↔ units mistakes

Mistaking the typical milligram (mg) dose for micrograms (mcg) in the calculator, leading to a thousand-fold dosing error.
Assuming the per-dose volume and syringe draw will be as small as sermorelin's and failing to plan for a larger subcutaneous injection.
Attempting to reconstitute a 5 mg vial with an excessively small diluent volume, making the large 1 mg dose difficult to measure and draw accurately.

Frequently asked questions about Tesamorelin mg ↔ units

What's the formula behind this Tesamorelin 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 Tesamorelin example at 2.50 mg/mL, 1 mg works out to about 40 units, and the same number of units converts back to 1 mg. Tesamorelin's larger unit counts (40-80 units per dose) are easier to read than the 10-20 units typical of CJC-1295 or ipamorelin.

Why does my Tesamorelin unit count not match a number I read online?

Almost always because the other source assumed a different vial concentration. A "Tesamorelin 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. Tesamorelin's larger unit counts (40-80 units per dose) are easier to read than the 10-20 units typical of CJC-1295 or ipamorelin.

Does the Tesamorelin 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 Tesamorelin dose displayed as 0.25 mg is the same number, just easier to read. Tesamorelin's larger unit counts (40-80 units per dose) are easier to read than the 10-20 units typical of CJC-1295 or ipamorelin.

When would I convert Tesamorelin 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. Tesamorelin's larger unit counts (40-80 units per dose) are easier to read than the 10-20 units typical of CJC-1295 or ipamorelin.

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