About Magic Mushroom Dosage Calculator
Magic Mushroom Dosage Calculator explains what mushroom dose calculators can and can't know, with a source behind every number. It's published by the team that runs My Mushroom Dispensary, an online shop for adults 21+, and it gives no dosing advice.
What this site covers
People search for a magic mushroom dosage calculator expecting a number. Our answer is that no calculator can know what's in your mushrooms, so we show the working instead:
- An audit of 36 online dose and tolerance calculators: what each one asks for, what it assumes and what it warns about.
- Published psilocybin measurements from lab studies, with downloadable data.
- A medication interactions reference and a summary of who clinical trials exclude.
- What research says about body weight, tolerance and microdosing, plus news on research and rule changes.
- Where to get help if something goes wrong.
Who publishes this site
Magic Mushroom Dosage Calculator is published by the team that runs My Mushroom Dispensary, an online shop for adults 21+. That's a commercial interest in the subject, and you should read what we publish with it in mind.
We sell no advertising and nothing on this site. A few pages about calculators, strains, capsule labels and microdosing include a box about the shop, and every box carries the same disclosure line. The safety pages, the interactions reference, the help page, the glossary and news posts don't link to the shop. In the calculator audit, the shop's own calculator is left out of the counts and shown separately against the same checklist.
Psilocybin is a Schedule I controlled substance under federal law, and ordering psilocybin online or by mail is illegal under federal law and in every state. Our disclaimer sets out the legal position.
Why we don't give dosing advice
We don't tell anyone what amount to take, and our pages contain no amounts to take, schedules or preparation steps. Three reasons:
- Psilocybin content varies from mushroom to mushroom, even within a strain, so any suggested amount is a guess about what's in yours (see strain potency).
- Medicines such as lithium and antidepressants change the risks and the effects, and some health conditions are reasons clinical trials turn people away.
- We aren't your clinician. A web page can't see your health history, and a decision like this should involve someone who can.
What we do report is what studies measured, including amounts that trial participants received, presented as findings about those studies.
How we check facts
Every number on the site comes from a source we link to, preferably the primary document: a journal article (with its PubMed ID where there is one), a trial registry record, a drug label, a Federal Register notice or a state agency rule. Numbers carry their denominators. If we couldn't confirm something against the primary document, we leave it out or say who reported it. Each page shows the date it was last checked or updated.
Drafts are written with AI tools and checked against their sources by the editors. Our editorial standards explain how, and how to report an error.
Who writes it
Pages are bylined to the Dosage Calculator editors, the team that researches, writes and checks them. We don't put named experts on pages, quote people we haven't interviewed, or publish reviews or testimonials.
Questions and corrections: editors@magicmushroomdosagecalculator.com. More on the contact page.