--- title: "Tirzepatide Dosage Calculator: Units & Titration Chart" url: https://www.bodyhackguide.co/tools/dosage/tirzepatide description: "Free Tirzepatide dosage calculator. Convert any weekly dose to insulin units and ml, see the once weekly titration schedule, and find out how long a vial lasts." lang: en --- Skip to content Compare notes with other researchers. Join r/BodyHackGuide (https://reddit.com/r/bodyhackguide) # Tirzepatide Dosage Calculator Mounjaro, Zepbound Tirzepatide (the GIP/GLP-1 agonist sold as Mounjaro and Zepbound) has an FDA label, so the dosing is spelled out. It's a once-weekly subcutaneous shot that starts at 2.5 mg and climbs by 2.5 mg every 4 weeks as tolerated, up to a 15 mg ceiling. Enter your vial and target dose for the exact draw. Common Tirzepatide doses (once weekly) mg ml mg Concentration 5.00 mg/ml 5000 mcg/ml Volume per Dose 0.500 ml Draw this amount Syringe Draw 50 IU 100-unit insulin syringe Supply per Vial 4.0 weeks At 2.5 mg/week Draw to 0 10 20 30 40 50 60 70 80 90 100 50.0 units Draw to this line ## Tirzepatide Titration Schedule & Dose Chart Syringe units below assume a 10 mg vial in 2 ml of BAC water (5.0 mg/ml). Adjust the calculator above for your own mix. | Week | Weekly Dose | Volume | Syringe Draw | | --- | --- | --- | --- | | 1-4 | 2.5 mg | 0.50 ml | 50 IU | | 5-8 | 5 mg | 1.00 ml | 100 IU | | 9-12 | 7.5 mg | 1.50 ml | 150 IU | | 13-16 | 10 mg | 2.00 ml | 200 IU | | 17-20 | 12.5 mg | 2.50 ml | 250 IU | | 21+ | 15 mg | 3.00 ml | 300 IU | Maximum studied dose: 15 mg once weekly. Step up only if side effects are tolerable. These figures follow the published Tirzepatide labeling. Individual protocols vary and dosing should be set with a qualified clinician. BodyHackGuide publishes for research and educational purposes only. ## Tirzepatide Dosing FAQ ### What is the tirzepatide dosage schedule? ### How many units is 5 mg of tirzepatide? ### What is microdosing tirzepatide? ### How long does a tirzepatide vial last? ### More Tirzepatide Resources Tirzepatide compound page: https://www.bodyhackguide.co/compound/tirzepatide Tirzepatide dosage guide & protocols: https://www.bodyhackguide.co/guides/dosage/tirzepatide How to reconstitute Tirzepatide: https://www.bodyhackguide.co/tools/reconstitution/tirzepatide Where to buy Tirzepatide: https://www.bodyhackguide.co/buy/tirzepatide Retatrutide vs Tirzepatide: full comparison: https://www.bodyhackguide.co/compare/retatrutide-vs-tirzepatide Free 2026 Peptide Cheat Sheet (PDF) Reconstitution math, concentration charts, half-lives, and vendor links. The reference we wish we had on day one. Download Free (https://www.bodyhackguide.co/guides/peptide-cheat-sheet-download) Image: BodyHackGuide (https://www.bodyhackguide.co/assets/bodyhackguide-logo-DOzZNUyh.webp) ### BodyHackGuide Your biohacking research hub: compound pricing, brain health protocols, dosing tools, and vendor reviews. support@bodyhackguide.co Join our Discord: https://discord.gg/Mhq5UdRYBA r/BodyHackGuide on Reddit: https://reddit.com/r/BodyHackGuide #### Explore - Compare prices: https://www.bodyhackguide.co/compare - Research suppliers: https://www.bodyhackguide.co/vendors - Deals: https://www.bodyhackguide.co/deals - Coupons: https://www.bodyhackguide.co/coupons - Nootropics: https://www.bodyhackguide.co/nootropics - Brain health: https://www.bodyhackguide.co/brain-health - Blog: https://www.bodyhackguide.co/blog - Guides: https://www.bodyhackguide.co/guides #### Tools - Reconstitution: https://www.bodyhackguide.co/tools/reconstitution - Half-life visualizer: https://www.bodyhackguide.co/tools/halflife - COA lookup: https://www.bodyhackguide.co/tools/coa - Cost calculator: https://www.bodyhackguide.co/tools/cost-calculator - Stack builder: https://www.bodyhackguide.co/stack-builder - All tools →: https://www.bodyhackguide.co/tools #### Trust & vendors - Vendor directory: https://www.bodyhackguide.co/vendors - Trust scorecard: https://www.bodyhackguide.co/vendors/scorecard - Vendor trust badge: https://www.bodyhackguide.co/vendors/get-vetted - Scoring methodology: https://www.bodyhackguide.co/vendors/methodology - Peptide cheatsheet: https://www.bodyhackguide.co/guides/peptide-cheat-sheet-download #### Company - About: https://www.bodyhackguide.co/about - Affiliate disclosure: https://www.bodyhackguide.co/affiliate-disclosure - Editorial standards: https://www.bodyhackguide.co/editorial-standards - Creators: https://www.bodyhackguide.co/creators - Coaches: https://www.bodyhackguide.co/coaches - Privacy: https://www.bodyhackguide.co/privacy - Terms: https://www.bodyhackguide.co/terms - Full site directory →: https://www.bodyhackguide.co/site-directory **Affiliate Disclosure:** We rank every vendor on the same public, reproducible methodology (https://www.bodyhackguide.co/vendors/methodology), and we earn a commission from purchases made through our links at no extra cost to you. Full details in our affiliate disclosure (https://www.bodyhackguide.co/affiliate-disclosure). **Research Disclaimer:** All compounds listed are for laboratory and research purposes only. Not for human consumption. This site does not sell, distribute, or promote any products. Always consult a qualified healthcare professional and comply with local regulations. © 2026 BodyHackGuide. All rights reserved. · Terms (https://www.bodyhackguide.co/terms) · Privacy (https://www.bodyhackguide.co/privacy) ## Structured data ```json [ { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "What is the tirzepatide dosage schedule?", "acceptedAnswer": { "@type": "Answer", "text": "You start at 2.5 mg once weekly for 4 weeks. That first dose is about tolerance, not weight loss. Then you move to 5 mg, and from there the label allows 2.5 mg bumps every 4 weeks if you need them: 7.5, 10, 12.5, and a 15 mg max. Most people settle at the lowest dose that keeps working." } }, { "@type": "Question", "name": "How many units is 5 mg of tirzepatide?", "acceptedAnswer": { "@type": "Answer", "text": "Depends on your mix. A 10 mg vial in 2 ml of bacteriostatic water is 5 mg/ml, so 5 mg is 1.0 ml, the full barrel of a standard insulin syringe (100 units). Use less water if you want a smaller draw. The calculator shows your exact number." } }, { "@type": "Question", "name": "What is microdosing tirzepatide?", "acceptedAnswer": { "@type": "Answer", "text": "Microdosing just means a smaller weekly dose than the standard titration, often 1 to 2 mg, either to ease in or to hold steady with fewer side effects. The math doesn't change; you're just drawing less. Put your microdose in the calculator to see the units." } }, { "@type": "Question", "name": "How long does a tirzepatide vial last?", "acceptedAnswer": { "@type": "Answer", "text": "Vial size divided by weekly dose. A 10 mg vial at 2.5 mg/week is four weeks; at 5 mg/week, two. Reconstituted tirzepatide holds up about 4 to 8 weeks refrigerated, so size the vial to your dose and it won't expire half-used." } } ] }, { "@context": "https://schema.org", "@type": "SoftwareApplication", "name": "Tirzepatide Dosage Calculator", "description": "Free Tirzepatide dosage calculator. 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