Drug Monograph · Interactive tools
Tirzepatide Tools
Free, no-login calculators built around tirzepatide’s real-world questions — what it costs, and the arithmetic behind compounded-vial dosing. Every tool runs entirely in your browser, stores nothing, and shows its math. They are educational, not medical or financial advice.
§ Cost estimator
Zepbound Cost Calculator
Estimate your monthly and annual out-of-pocket cost for Zepbound by format (vial vs pen), dose tier, insurance route, and membership fee — using current-2026 LillyDirect and savings-card prices.
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§ Dose math
Tirzepatide Dose ↔ Unit Converter
Convert a compounded-vial tirzepatide dose between milligrams and units on a U-100 insulin syringe, from the vial total and bacteriostatic-water volume. A math converter only — not a dose recommendation.
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§ Projection
Tirzepatide Weight-Loss Projection Calculator
Project your expected weight at ~72 weeks from your current weight and maintenance dose (5/10/15 mg), using the SURMOUNT-1 trial mean weight reductions. Trial population averages, not a promise — not medical advice.
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Where to get it
Affiliate partners
Skip the arithmetic
If you already know you want a prescription rather than an estimate, these are the telehealth programs we partner with.
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CoreAge Rx
Doctor-reviewed tirzepatide with one flat price and built-in human support.
$149/mo flatCompounded tirzepatide (503A)
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Ageless
Broad compounded storefront pairing $169/month injectable tirzepatide with a rare oral-drop option — plus NAD+, sermorelin, and TRT under one roof.
$169/mo injectableCompounded tirzepatide (injectable and oral drops)
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Found
Established, physician-designed weight care with a broad formulary — real brand-name Zepbound/Mounjaro alongside compounded tirzepatide, paired with coaching.
From $99/mo (varies)Broad formulary: compounded tirzepatide plus brand-name Zepbound/Mounjaro, brand/compounded semaglutide, and oral Rybelsus
See the full ranking, with prices plotted against the market median
Advertising disclosure. We may earn a commission if you start treatment through these links, at no extra cost to you. Full disclosure.
About these tools
These calculators are informational only and do not provide medical or financial advice, a price quote, or a dose recommendation. Drug prices and program terms change frequently, and compounded-vial concentrations are not standardized — always verify figures against the source (LillyDirect, your insurer, your vial label) and with a licensed clinician. Tirzepatide is prescription-only.