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Written by Dr. Parmis Mojarab, DO·Published July 12, 2026·Last reviewed July 12, 2026·Methodology v1.0

GLP-1 cost calculator

Add up the true monthly cost of a GLP-1 program including medication, membership, labs and shipping — the figure providers rarely show on their banner price.

Not medical adviceResults are informational only and are not a diagnosis, a prescription, or a guarantee of treatment eligibility. A licensed clinician determines whether treatment is appropriate.
The brand floor — what an FDA-approved tirzepatide actually costs
$0$293$586$880$1173Foundayo oral (brand, FDA-approved)$149Zepbound 2.5mg (LillyDirect)$299Zepbound 5mg (LillyDirect)$399Zepbound 7.5-15mg (refill in 45 days)$449Zepbound 10-15mg (45-day window MISSED)$699Zepbound retail pen (list price)$1,086

Verified against Eli Lilly's own pricing pages. Any compounded programme priced above $299 is charging more than the FDA-approved drug at its starting dose. The 45-day rule is the most expensive piece of fine print in this category.

What this tool calculates, and the formula behind it

Every figure this tool produces uses the same formula as our editorial pages, drawn from the same dataset. There is no separate “marketing” number.

Effective monthly cost = total mandatory payments ÷ months supplied.

Inputs, and why each one is in the formula
InputWhy it counts
Advertised priceThe starting point — and usually the most misleading number available.
Number of monthsA 12-month plan and a month-to-month plan are not the same product.
Membership feeIf you cannot decline it, it is part of the price. Roughly half the market splits it out.
Consultation feeCharged separately by some providers; invisible in most comparison tables.
Laboratory feeSome programmes require labs and bill them; others include them.
ShippingFree at some providers, billed at others.
Onboarding feeA one-off charge that is amortised across the plan, not ignored.
Dose surchargeThe big one. A flat-rate programme and an escalating one can differ by thousands a year at maintenance.
Renewal priceWhat you pay from month two. This is the number that matters.
Discount / couponApplied only where the eligibility is stated.

Assumptions and limitations

Privacy

This tool runs entirely in your browser. Nothing you enter is transmitted, stored or logged. We do not collect health information through any tool, form or search on this site.