Tools
Calculators that answer what you asked and decline what you did not.
The tools here do the arithmetic around reconstitution: the concentration a vial and a diluent volume produce, and how much of that solution sits in a single syringe unit. They run in the browser with nothing to install and nothing saved, every value they use is one you entered, and none of them asks what you intend to take.
What counts as a tool here
Something that computes, from numbers you supply, an answer you could verify by hand. That is a deliberately unglamorous definition, and it is the whole standard: if a result cannot be traced back to your own inputs and a stated formula, it does not belong in a calculator on a health-adjacent site.
Which is why the fields arrive empty. A pre-filled "typical" value is a recommendation wearing the costume of a default, and it is read as one — especially by whoever is least sure what they are doing.
- Every input is yours. Nothing is assumed, suggested, or filled in for you.
- Every output is derived by a formula the accompanying guide states in full.
- Incompatible units are refused rather than approximated.
- No account, no install, and no values kept after you close the tab.
Where the tools stop
They convert. They do not advise. A tool here will never tell you how much diluent to add, how much to take, how often, or which compound to use — those are the questions the ranking calculators elsewhere answer freely, and they are exactly the questions Pinned's Terms rule out for both the app and this site.
There is not even a field for an intended dose. What a tool here removes is the arithmetic of the vial itself — what the solution now is, and what one mark of it holds. The last step, from that to a number of marks, is set out in full in the guides and stays yours to carry out.
The same maths, one step further in the app
The calculator on this site is stateless by design. Pinned runs the identical arithmetic against a vial in your cabinet — the concentration you actually mixed, the syringe you actually own — and files the result with the dose entry, along with the vial's expiry and discard dates.
The boundary does not move between the two. In the app as here, Pinned calculates from values you entered and reference identity data, and recommends no compounds, doses, stacks, sources, or protocols.
These tools convert numbers you enter. They do not recommend compounds, sources, doses, diluent volumes, or protocols, and no result they produce is medical advice.
FAQ
- Are the tools free?
- Yes, and there is nothing to sign up for. They run in the page, with no account and no install.
- Is anything I type stored?
- No. The calculation happens in the browser and the values are gone when the tab closes. Keeping numbers against a specific vial over time is what the app is for.
- Do I need the app to use them?
- No. The tools stand alone. The app adds the parts a stateless page cannot do — a cabinet of real vials, dose history, and dates that follow the vial.
- Will a tool ever suggest a dose or a diluent volume?
- No. Both are inputs and both come from you, from the product's labelling, and from whoever prescribed or supplied the vial. That limit is not a missing feature; it is the product's stated position.
Last updated 2026-08-08 · Kurt Bijl