Supply Calculator
Work out how long the medication in your order will last at your current dose. An estimate of supply — not a schedule for when you can reorder.
Both parts of the strength as printed on the label — the milligrams, and the millilitres they sit in. If the label just reads /mL with no number, that means 1. Concentrations change between orders, so read the vial in your hand.
How much liquid each vial holds in total, and how many vials came in this order.
Your most recent prescribed dose can be found via your latest provider consult message. If you have since titrated, verify your current dose on your Rx Summary. You will also need to know whether you take it weekly or daily.
Run Your Numbers
Nothing you type here is sent to us or saved to your record.
Your label prints the strength as an amount of medication in an amount of liquid. Copy both numbers across exactly as you see them — don’t convert anything yourself.
—
Fill in your label, your vials and your doseAn estimate of supply, not a refill schedule — when you can reorder depends on your plan and your follow-up requirements.
The answer assumes you stay on one dose for the whole order. A dose change moves it in either direction — going up uses the medication faster, so the order runs out sooner than it says here; going down stretches the same medication further.
Most people titrate upward at some point, so treat this as a snapshot of today’s dose rather than a fixed end date. Any time you change your dose, come back and run it again with the new number.
What This Number Does, & Does Not, Tell You
It tells you how many full doses are sitting in the medication you were sent, and how many weeks that covers at the dose you entered. That is useful for planning — knowing roughly when your next order starts to matter. It is a snapshot of one dose, not a countdown: change the dose and the answer changes with it.
It does not tell you when you are due for a refill. Refill timing runs off your plan and your follow-up requirements, and those dates can fall either side of the day a vial empties. If the two do not line up, the refill rules win.
If the arithmetic says your supply runs short of where you want it to reach, that is a conversation with your provider, not something to solve by adjusting what you draw up. The dose in your most recent consult message is what you follow.
A total that does not match what you were expecting is worth raising rather than shrugging off. Everyone in this chain is human, and a mismatch is sometimes a real error on a label or in an order. Message your provider through the patient portal with both parts of your vial’s strength, the number of vials, and what you calculated.
Not Sure How Many Units To Draw Up?
The dose calculator converts between milligrams and units on your syringe, using the strength printed on your vial.
This calculator is a convenience tool, not medical advice. Unit conversions assume a standard U-100 syringe, where 100 units is 1 mL. Your most recent consult message and your Rx Summary govern how much you take and when, and your plan governs when you can reorder.