5e Ability Score Calculator

Fact Checked by: Dr. Julian Vance, PharmD | Updated: October 2023

Estimating the required dosage of psilocybin after a recent trip is essential for harm reduction and experience management. This shrooms tolerance calculator uses the scientific Wadsworth formula to determine how much you need to consume to achieve your desired intensity based on the time elapsed since your last dose.

Shrooms Tolerance Calculator

How strong do you want the trip to feel? (e.g., if you want a 3.5g effect, enter 3.5)

shrooms tolerance calculator Formula

$$y = \frac{x}{100} \times (280.059565 \times n^{-0.412565956}) + (d – x)$$

Formula Source: Erowid Health Archives and PsychonautWiki.

Variables:

• y (Result): The estimated amount you need to take today.
• x (Last Dose): The amount (in grams) consumed during your last experience.
• d (Desired Dose): The intensity level you wish to experience today.
• n (Days): Number of days since your last consumption.

Related Calculators

• LSD Tolerance Calculator
• Psilocybin Dosage Guide
• Mushroom Potency Comparison Tool
• Microdosing Schedule Generator

What is shrooms tolerance calculator?

A shrooms tolerance calculator is a tool designed to estimate the physiological resistance the human body develops after consuming psilocybin. The primary mechanism involves the downregulation of 5-HT2A receptors in the brain, which happens rapidly after exposure to serotonergic psychedelics.

Because tolerance peaks within hours and can take up to 14 days to fully reset to baseline, this calculator helps users avoid “wasted” doses by mathematically adjusting for the temporary decrease in sensitivity.

How to Calculate shrooms tolerance calculator (Example)

1. Determine your last dose (e.g., 2.0g).
2. Decide on your desired intensity (e.g., you want it to feel like 2.0g again).
3. Count the days since (e.g., 3 days).
4. Apply the formula: At 3 days, the multiplier is significantly higher than 1.0. The calculator will show you need approximately 3.6g to feel the effect of 2.0g.

Frequently Asked Questions (FAQ)

How long does shroom tolerance last? Typically, it takes about 10 to 14 days for tolerance to return to 100% baseline.

Is mushroom tolerance the same as LSD tolerance? Yes, they share cross-tolerance because both act on the same serotonin receptors.

Can I trip two days in a row? You can, but you would likely need to double the dose to achieve a similar effect, which is generally not recommended.

Does microdosing affect tolerance? Yes, even small amounts can cause slight receptor downregulation, though much less significantly than a macro-dose.