How do I calculate peptide concentration after adding water?

Divide the amount in the vial by the volume of water you added. A 10 mg vial mixed with 2 mL gives 10 ÷ 2 = 5 mg/mL, which is the same as 5,000 mcg/mL.

How many units are in 1 mL on a U-100 syringe?

A U-100 insulin syringe is marked so that 100 units equal 1 mL. Each unit is 0.01 mL, so 0.25 mL reads as 25 units.

How do I convert mg to mcg?

Multiply milligrams by 1,000. 1 mg = 1,000 mcg, so 0.25 mg = 250 mcg. To go back, divide mcg by 1,000.

Can I convert units on the syringe back to an amount?

Yes. Divide the units by 100 to get mL, then multiply by the concentration. 20 units = 0.20 mL; at 5 mg/mL that holds 1 mg. The calculator does this when you type units into the units box.

Does adding more water change how much is in the vial?

No. The total in the vial stays the same. More water lowers the concentration, so the same amount takes up more volume and more units on the syringe.

Why is IU treated differently from mg?

IU measures biological activity, not weight, so there is no universal IU-to-mg rule. The calculator uses the IU count printed on your own vial label instead of guessing.

Does PeptideWhiz suggest doses?

No. PeptideWhiz never suggests or recommends an amount. Every number comes from you, and the tool only does the arithmetic. It is not medical advice.

Do I need an account to use the calculator?

No. The calculator is free and works without an account. An account only lets you save results to your stack and tracker.

Peptide Calculator

Vial and water math for Liraglutide, with a research record of published human trials. Math only, no suggested amounts.

Free · no account needed

Compound (Optional)

Desired Amount Per Dose

units (U-100)

Vial Strength (Total mg of Your Vial)

Reconstitution Solution Added

Titration Schedule (Optional)

Results

Draw to

—units

Enter amount, vial and Reconstitution Solution

ConcentrationConc.

—mg/mL

Your dose

—mg

Doses / vial

—

More than 100 units (over 1 mL). This won't fit in a single U-100 syringe draw. Double-check your numbers or use more water / a smaller amount.

U-100 Syringe · 1 mL

Notes

PeptideWhizpeptidewhiz.app · research use only

Research use only (RUO). Results are math on the values you enter only, not a recommendation or prescription for human use. Not medical advice. Always verify your own measurements. Full disclaimer

About Liraglutide

Liraglutide is a GLP-1 analogue that shares most of its amino acid sequence with human GLP-1, with a fatty acid chain attached so it lasts about a day in the body. Trials therefore give it once daily, unlike the weekly analogues that came later.

Research status

Liraglutide is the active ingredient in FDA-approved prescription medicines (Victoza for type 2 diabetes, Saxenda for chronic weight management). It has a long research record, including heart outcome and adolescent obesity trials, and generic versions now exist.

How the math works for any vial (concentration, U-100 units, mg and mcg) is explained step by step on the main peptide reconstitution calculator page. Read the full What is Liraglutide? guide for mechanism, trials and conditions researched.

What published studies used

Research record, not a recommendation or protocol

These are published human trials of Liraglutide from the PeptideWhiz study library. The last column quotes each study’s PubMed abstract word for word, so it shows what that study reported giving its participants under medical supervision. It is not advice, and the calculator never fills these numbers in on its own: you can copy one only by tapping its button and confirming.

Study	Year	Journal	As reported in the abstract	PubMed
[Impact on weight loss and body composition of a food education intervention associated with Liraglutide treatment to address obesity].	2024	Nutricion hospitalaria	“One group received treatment with liraglutide 3.0 mg/day along with individual dietary education, and the other group was treated with liraglutide 3.0 mg/day and standard medical follow-up for 32 weeks.”	PMID 38450509
Liraglutide for Weight Management in Children and Adolescents With Prader-Willi Syndrome and Obesity.	2022	The Journal of clinical endocrinology and metabolism	“Patients were randomized 2:1 to liraglutide 3.0 mg (or maximum-tolerated dose) or placebo for 16 weeks, after which placebo was stopped.”	PMID 36181471
Effect of Weekly Subcutaneous Semaglutide vs Daily Liraglutide on Body Weight in Adults With Overweight or Obesity Without Diabetes: The STEP 8 Randomized Clinical Trial.	2022	JAMA	“Participants were randomized (3:1:3:1) to receive once-weekly subcutaneous semaglutide, 2.4 mg (16-week escalation; n = 126), or matching placebo, or once-daily subcutaneous liraglutide, 3.0 mg (4-week escalation; n = 127), or matching placebo, plus diet and physical activity.”	PMID 35015037
Once-weekly cagrilintide for weight management in people with overweight and obesity: a multicentre, randomised, double-blind, placebo-controlled and active-controlled, dose-finding phase 2 trial.	2021	Lancet (London, England)	“Participants were randomly assigned (6:1) to subcutaneous self-injections of once-weekly cagrilintide (0·3, 0·6, 1·2, 2·4, or 4·5 mg), once-daily liraglutide 3·0 mg, or volume-matched placebo (for six placebo groups).”	PMID 34798060
Efficacy and safety of oral semaglutide in Japanese patients with type 2 diabetes: A post hoc subgroup analysis of the PIONEER 1, 3, 4 and 8 trials.	2021	Diabetes, obesity & metabolism	“Patients were randomized to once-daily oral semaglutide 3, 7 or 14 mg or comparator (placebo, sitagliptin 100 mg or liraglutide 1.8 mg).”	PMID 34472698

Disclaimer: this table is an educational research record. It does not recommend, suggest or endorse any amount, schedule or use, and it is not medical advice. Decisions about any medicine belong with a licensed clinician.

Liraglutide calculator FAQ

What is Liraglutide?

Liraglutide is a GLP-1 receptor agonist. Liraglutide is a GLP-1 analogue that shares most of its amino acid sequence with human GLP-1, with a fatty acid chain attached so it lasts about a day in the body.

Is Liraglutide approved?

Does this page suggest a Liraglutide dose?

No. The calculator dose field starts empty and PeptideWhiz never suggests, recommends or calculates an amount for anyone. The study table is a research record of what published trials reported, not a recommendation or protocol.

Where do the study numbers on this page come from?

Each row quotes the abstract of a published human trial (5 trials, 2021 to 2024) word for word, as indexed in PubMed, with a link to the PubMed record. Nothing is rounded, combined or converted.

How does the calculator work with a Liraglutide vial?

Pick Liraglutide in step 1 if you want it on your result card, then enter the vial amount printed on your own label and the water volume actually added. The tool divides one by the other for concentration and shows the matching U-100 syringe units for an amount you type. Pens and pre-filled syringes are already in liquid form and are not reconstituted.

Sources

Study rows: PubMed records linked in the table (abstracts checked against PubMed on October 31, 2026). Unit math: see the sources on the main calculator.

Reviewed by the PeptideWhiz team on October 31, 2026. For research and education only.