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Mushroom Dose Calculator

Input Parameters

Enter the percentage of psilocybin content (PCBE) between 0-20%

Enter 0 or leave blank if not applicable. If tested, only count months since testing date

Optional

Desired experience

Strain PCBE Information

Using custom PCBE value: Please enter a value above

PCBE typically ranges from 0.3% to 3.0% for most strains, with some exceptions.

Calculation Results
Recommended Dose

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Calculation Details

Enter strain and experience information above to see calculation details.

The calculator uses your input parameters to determine the appropriate dose based on:

  • Strain-specific potency levels
  • Your desired experience intensity
  • Storage time and method (which affects potency)
Usage Notes

This calculator provides dosage estimates based on strain potency and experience level. Individual sensitivity to psilocybin can vary significantly.

For beginners, we recommend starting with a lower dose than calculated and slowly working your way up with subsequent experiences. Never combine with alcohol or other substances.

Always ensure you have a safe, comfortable environment and, ideally, a sober trip sitter present, especially for moderate to high doses.

Acknowledgments

Special thanks to Gordo for his invaluable work inspiring and maintaining this tool, as well as his community-building efforts. Learn more about the science behind mushroom storage and preservation on his Patreon page

Frequently Asked Questions

Mushroom potency varies significantly between strains and even between batches of the same strain. Potency is measured as a percentage of psychoactive compounds (PCBE). Using our calculator helps account for these variations to achieve a more predictable experience.

Mushrooms lose potency over time, especially if not stored properly. Our calculator factors in both storage time and storage method to provide more accurate dosing recommendations that account for potency degradation.

Our calculator offers five experience levels ranging from mild effects (Level 1) to profound experiences (Level 5). Each level corresponds to different intensity of effects and is suitable for different purposes, from microdosing to therapeutic or spiritual experiences.

For accurate dosing, we recommend using a digital scale capable of measuring to 0.01 grams. The calculator will show you the exact dried mushroom weight needed for your selected experience level and mushroom strain.