GLP-1 monthly cost calculator
Reviewed by Ellis Brandt. Sources checked September 2026.
Enter your quoted price and the time it covers to see its calendar-month equivalent. Monthly, four-week, shipment and prepaid prices cover different lengths of time.
No provider promotions or purchase links. The calculation uses the amount you enter.
Restated as a standing monthly rate
$379.38
$349.00 × 30.44 days ÷ 28 days
| per day of supply$349.00 ÷ 28 days | $12.46 |
|---|---|
| over a year at that rate$349.00 × 365.25 days ÷ 28 days | $4,552.58 |
Your figure buys 28 days of supply. Restated over an average calendar month of 30.44 days that is $379.38 — more than the number you were quoted, because a 4 weeks and a calendar month are not the same length. This converts what the figure BUYS. It says nothing about when you are charged, or whether you can stop.
Compare the same billing period
Four weeks is 28 days; an average calendar month is 30.44 days. At the same quoted price, a four-week plan costs about 8.7% more over an average month. This calculator converts both prices to the same time period.
A plan billed with each eight-week shipment has a different payment schedule from a monthly plan. For a prepaid three- or six-month supply, enter the full charge and its matching supply period. Keep the upfront payment separate from the monthly equivalent.
It is not an obscure problem. Of the 61 sellers on this site that publish a comparable figure before an intake, every one of them was read as charging on a calendar month — and they wrote that one cycle 22 different ways across those 61 figures, from a bare slash-mo to “Billed monthly · no commitment”. This site restates all of them as “per month” so a reader can set them side by side. If your own quote uses a different term, that restatement is the arithmetic above, and you have to do it before any comparison means anything.
What this calculator does not tell you
It does not tell you when your card is charged. A term is not a billing cycle: a figure that buys twelve weeks of supply can be billed once up front, monthly against a commitment, or on despatch, and the arithmetic above cannot tell which. It converts the price, not the contract.
It does not tell you whether two restated figures are comparable. Two standing monthly rates are still not the same offer if one holds at every dose and the other prices a single rung of a ladder, and what a published price actually buys, by dose is the page that counts how often each of those is true on this roster.
It does not name a cheapest, and neither does any board on this site. It restates one number that you supplied. There is no ranking in it and there is nothing here to buy.
Why this page carries no advertising
This calculator has no provider promotions or purchase links. It uses the amounts you enter to help compare billing periods. Read our disclosure for more about how the site is funded.